Azis, R., M. Syafar, A. Zulkifli, and A. Seweng. “Effect of Family Wealth and Attitudes Toward Unmet Need for Family Planning Among Fertile Couples in Makassar, South Sulawesi, Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 26, no. 3, Apr. 2016, pp. 168-79, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5642.