CHAVES CERÓN, Margarita; LUNA TASCÓN, Edwin Gerardo; CEBALLOS MORA, Ana Karen; GUERRERO FAJARDO, Viviana. Ecological model and systems of moral, cultural and legal regulation as risk and protection factors againts substances abuse among students of the University of Nariño. Universidad y Salud, San Juan de Pasto, CO, v. 15, n. 2, p. 176–186, 2013. Disponível em: https://revistas2.udenar.edu.co/index.php/usalud/article/view/2361. Acesso em: 15 apr. 2026.