ANGGRIANI, N.; TOAHA, S. .; KASBAWATI, K. Optimal Control of Mathematical Models on The Dynamics Spread of Drug Abuse. Jurnal Matematika, Statistika dan Komputasi, [S. l.], v. 17, n. 3, p. 339-348, 2021. DOI: 10.20956/j.v17i3.12467. Disponível em: http://journal.unhas.ac.id/index.php/jmsk/article/view/12467. Acesso em: 10 may. 2024.