Ananua, D. M., H. Tucholski, and C. Mwarari. “Character Strengths of Self-Regulation and Purpose in Life As Predictors of Life Satisfaction and Mental Wellbeing”. The International Journal of Humanities & Social Studies, vol. 8, no. 9, Sept. 2020, doi:10.24940/theijhss/2020/v8/i9/HS2009-015.