Gautama, I.P.W, Ida Ayu Putu Ari Utari, Ratna Widiastuti, and IB Arimbawa K. “Modelling the Nonlinear Incidence Rate of Drug Addiction: A Mathematical Approach”. International Journal Of Mathematics And Computer Research 13, no. 10 (October 10, 2025): 5727-5735. Accessed May 19, 2026. https://www.ijmcr.everant.org/index.php/ijmcr/article/view/1048.