Alkhudhari, Zainab, Sarah Al-Sheikh, and Salma Al-Tuwairqi. “Stability Analysis of a Giving up Smoking Model”. International Journal of Applied Mathematical Research 3, no. 2 (April 26, 2014): 168–177. Accessed May 2, 2024. https://sciencepubco.com/index.php/ijamr/article/view/2239.