Apriani, Desak Nyoman Inten, and Benno Rahardyan. “Pemanfaatan Limbah Spent Catalyst Sebagai Campuran Paving Block Dan Batako”. Jurnal Teknik Lingkungan 17, no. 2 (August 9, 2025): 34–44. Accessed December 9, 2025. https://www.envengjournal.com/index.php/jtl/article/view/47.