Abdullahi, Mohammed, and Gbodoti Isah Abdulmumini. “Continuous Time Semi-Markov Model to Optimise the Efficacy of World Health Organization HIV- naïves Staging Criterion in Nigeria”. UMYU Scientifica 4, no. 1 (February 7, 2025): 115–127. Accessed February 23, 2025. https://scientifica.umyu.edu.ng/index.php/scientifica/article/view/402.