1. Abdel-Khalek, A. M. (2010). Quality of life, subjective well-being, and religiosity in Muslim college students. Quality of Life Research, 19(8), 1133–1143.
2. Ahmadi, A., Ahghar, G., & Abedi, M. R. (2012). The relationship between spiritual intelligence and taking responsibility with life quality. European Online Journal of Natural and Social Sciences, 2(3), 391–400.
3. Ahmadian, E., Hakimzadeh, A., & Kordestani, S. (2013). Job stress and spiritual intelligence: A case study. World Applied Sciences Journal, 22(11), 1667–1676.
4. Akinyemi, A., & Aransiola, J. (2010). Gender perspectives in self-assessment of quality of life of the elderly in south-western Nigeria. Journal of Comparative Research in Anthropology and Sociology, 1(1), 107–120.
5. Alihosseini, F., Rangan, U., Alihosseini, A., & Hajmohammadi, F. (2014). A study of the relationship between spiritual intelligence and its components with happiness in youths. The International Journal of Humanities & Social Studies, 2(6), 56–60.