Mutua, Meshack Nzesei, Shiro Mogeni, and Janet Mueni Kilonzi. “Dealing With Attrition and Missing Data in Longitudinal Studies: A Critique”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 41, no. 2 (September 17, 2018): 34–47. Accessed May 3, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8964.