Lubis, Najla, et al. “Socialization of Household Organic Waste Utilization in Ecoenzyme Production in Suka Mulia Village, Secanggang, Langkat Regency”. International Conferance Of Digital Sciences And Engineering Technology , vol. 1, no. 1, Oct. 2024, pp. 152-7, https://proceeding.pancabudi.ac.id/index.php/ICDSET/article/view/176.