1.
Saparwadi L. Kestabilan Titik Ekuilibrium Bebas Heroin dalam Model Sistem Persamaan Diferensial (ODE). BetaJTM [Internet]. 2011 Nov. 25 [cited 2026 May 1];4(2):133-50. Available from: https://jurnalbeta.ac.id/index.php/betaJTM/article/view/76