Martina, Annisa. “Multivariate Markov Chain Model for Sales Demand Estimation in a Company”. International Journal on Information and Communication Technology (IJoICT) 7, no. 2 (January 1, 2022): 48–57. Accessed April 3, 2025. https://socjs.telkomuniversity.ac.id/ojs/index.php/ijoict/article/view/604.