Safitri, Hikmawati Fajri Devi, and Yoana Puspita Sari. “Studi Komparasi Metode 3R (Reduce, Reuse, Recycle) Pada Pengolahan Sampah Di Indonesia”. Prosiding University Research Colloquium, May 2021, pp. 552-8, https://repository.urecol.org/index.php/proceeding/article/view/1393.