دريباتي محمد, بوبو منذر, and درويش هديل. “Estimation of Population Mean in the Presence of Missing Data Under Stratified Random Sampling”. Latakia University Journal -Basic Sciences Series 43, no. 3 (July 7, 2021). Accessed July 27, 2025. https://journal.latakia-univ.edu.sy/index.php/bassnc/article/view/10644.