Raja Dollah, R. S. H., M. A. N. Rosman, M. H. H. Abdul Walit, and T. N. Tengku Ibrahim. “Pengasingan Sampah Automatik”. Multidisciplinary Applied Research and Innovation, vol. 3, no. 1, Feb. 2022, pp. 436-43, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/3568.