Fairuz, Ersya Nurul, Rina Widyasari, and Rima Aprilia. “Stochastic Modeling With Poisson Hidden Markov in Hepatitis B Cases”. Jurnal Pijar Mipa 19, no. 6 (November 30, 2024): 1111–1117. Accessed June 7, 2025. http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/7510.