Purwanto, Djoko. “Criminal Policy About Kecubung Containing Addictive Substances According to Law Number 35 of 2009 Concerning Narcotics”. Eduvest - Journal of Universal Studies 1, no. 3 (March 15, 2021): 128–132. Accessed October 9, 2025. http://eduvest.greenvest.co.id/index.php/edv/article/view/28.