Suretno, Muhibbudin, and Indra Ranggadara. ‚ÄúPengembangan Aplikasi Waste Bank Berbasis Blockchain‚ÄĚ. Teknika 11, no. 1 (March 1, 2022): 8-13. Accessed June 29, 2022. https://ejournal.ikado.ac.id/index.php/teknika/article/view/425.