ASHOK MONDAL; A. K. PAL. Modelling of Synthetic Drugs Transmission with Psychological Addicts. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 2 - B, p. 395–407, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/739. Acesso em: 22 jul. 2024.