The Effect of rehabilitation duration on serum cortisol levels in narcotics abuser patients at mutiara sukma mental hospital. Proceedings OPTIMAL, [S. l.], v. 2, n. 1, 2025. DOI: 10.5281/zenodo.15877219. Disponível em: https://proceedings.nuansafajarcemerlang.com/index.php/ico/article/view/135. Acesso em: 12 feb. 2026.