. Bowen, J. (2017). Relation intimacy and the enneagram: resource or stress points on the journey to marriage satisfaction. Retrieved from sexualintimacyboulder.com
. Brothers, B. J. (Ed.). (2011). Virginia Satir: Foundational ideas. New York: Routledge.
. Carpenter, D. G. (2015). Resonating personality types for couples: An Enneagram application for predicting marital satisfaction. PhD dissertation: Walden university. http://scholarsworks.wardenu.edu/dissertation
. Christensen, L. B., Johnson, R. B. & Turner, L. A. (2015). Research methods, designs and analysis (12th ed.). Boston, Pearson Education Limited.
. Collard, D. (2006). Research on well - being some advice from Jeremy Bentham. Philosophy of the Social Sciences, 36 (3), 330 - 354.
. Daniels, D. (2015). The 45 combinations of enneagram types relationships: How each pairing can disintegrate or Thrive. Retrieved from drdaviddaniels.com/relationships-intimacy/enneagram-types-in-relationship
. Erker, J. (2017). A Summary of a Qualitative Study of Satir Family Therapy: Theoretical and Practical Developments over the Past 30 Years. Satir International Journal, 5 (1), 76-81.
. Faul, Erdfelder, Buchner, and Lang (2009) Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses. Behavior Research Methods 2009, 41 (4), 1149-1160 doi:10.3758/BRM.41.4.1149
. FIDA (K), (2011). Domestic Violence in Kenya: Report of Baseline Survey among Women in Nairobi; Nairobi, FIDA (K).
. Funk J. L. & Rogge R. D. (2007). Testing the ruler with item response theory: increasing precision of measurement for relationship satisfaction with the Couples Satisfaction Index. J Fam Psychol. 21(4): 572-83. doi: 10.1037/0893-3188.8.131.522.
. Graham, J. M., Diebels, K. J., & Barnow Z. B. (2011). The Reliability of Relationship Satisfaction: A Reliability Generalization Meta-Analysis. Journal of Family Psychology, 25 (1), 39 - 48.
. Kamatu, K. D. & M'arimi, E. K. (2017). Parental influence on the marital instability of the young couples aged between twenty and thirty-five years in Ruiru Sub-county, Kiambu County-Kenya. International journal of innovative research & development. 6 (4), 112-121.
. Kenya National Bureau of Statistics (2014). Marital status by county and districts. Nairobi, Kenya National Bureau of Statistics.
. Kenya National Bureau of Statistics (2017). Men and women in Kenya: Facts and figures. Nairobi, Kenya National Bureau of Statistics.
. McGuiness, M. (2007). An introduction to the enneagram. Retrieved from www.wishfulthinking.co.uk/Blog
. Mbiti J. S. (2003). An introduction to African religion 2nd ed.Nairobi: East African Educational Publishers.
. Mbunga, J. M. (2010). An exploratory study of marital satisfaction of forty couples at the Africa Inland Church, Jericho, Nairobi, with the view to inform premarital counseling practices in Kenya Re trieved from https://trove.nla.gov.au/version/237918019
. Mead, N. L., (2005). Personality Predictors of Relationship Satisfaction among Engaged and Married Couples: An Analysis of Actor and Partner Effects. All Theses and Dissertations. 552. Retrieved from https://scholarsarchive.byu.edu/etd/552.
. Musau J. M. (2016). Demographic and spatial-temporal dimensions of marital instability and its effects on the family livelihoods in Machakos County, Kenya. Doctoral Dissertation, Kenyatta University School of Humanities and Social Sciences, Nairobi, Kenya
. Najarpourian, S., Fatehizadeh M., Etemadi, O., Ghasemi, V., Abedi M. R., & Bahrami, F. (2012). Personality types and marital satisfaction: Interdisciplinary journal of contemporary research in business. 4 (5), 372-38.
. Raulo, L. (2016). The enneagram in relationships: What types go well together? Retrieved from www.lynnroulo.com/enneagram-love-types-go-well-together
. Rebelo, K., Silva, Jr. M. D., & Brito, R. C. S. (2014). Fundamental factors in marital satisfaction: An assessment of Brazilian couple. Psychology, 5(4), 777-784.
. Schneider, J. P. & Corn, R., (2013). Understand Yourself, Understand Your Partner: The Essential Enneagram Guide to a Better Relationship. Create Space Independent Publishing Platform
. Stinnett, N., Stinnett, N., DeGenova, M. K. & Rice, F. P. (2016). Intimate Relationships, Marriages, and Families 9th Edition. New York: Oxford University Press.
. Tumuti, D. W., Ireri, A. M., & Tumuti, J. W. (2012). Relationship guidance sources, fear and reasons for marriage among young urban christians in Kenya. International journal of prevention and treatment, 1(2), 31-39.
. Wamue, N. G. & Njoroge, W. N. (2011). Gender paradigm shift within the family structure in kiambu, Kenya: African Journal of Social Sciences 1 (3), 10- 20.
. Watson, D., Hubbard, B., & Wiese, D. (2000). General traits of personality and affectivity as predictors of satisfaction in intimate relationships: Evidence from self- and partner- ratings. Journal of Personality and social psychology, 68(3), 413-449.
. World Health Organization, (2002).Facts on Intimate Partner Violence. Retrieved from http://www.who.int/violence_injury_prevention/violence/world_report/factsheets/en/ipvfacts.pdf.
. Wright, C. (2016). The conscious couple relationship; a new orientation of self-awareness, skills and tools for sustained love & harmony-Based on the spiritual & inner Enneagram. Virginia: McLean.