Ratnawati, Kania, Firda Ainun Nisah, and Yona Tasya Azizie. “The Effect of Substitution of LDPE Plastic, Coconut Fiber, and Seashell As Mixed Raw Materials for Paving Blocks”. Jurnal Pijar Mipa 19, no. 1 (January 29, 2024): 168–172. Accessed May 20, 2024. http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/6392.