Samsuddin, Shamshimah, Noriszura Ismail, and . . “Proportional Odds Model for Health States Analysis”. International Journal of Engineering and Technology 8, no. 1.7 (January 18, 2019): 56–61. Accessed February 10, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/25956.