Langi, M. T., V. N. Qalbi, and T. Y. Lestari. “The Influence of Narcotics and Illegal Drugs in Society: Facts and Efforts for Prevention”. International Journal of Multidisciplinary Research of Higher Education (IJMURHICA), vol. 8, no. 4, Oct. 2025, pp. 1003-10, doi:10.24036/ijmurhica.v8i4.408.