FESTIN, Teodorico F.. Pyrolysis of Wastes. Philippine Engineering Journal, [S.l.], v. 3, n. 1, nov. 2021. ISSN 2718-9287. Available at: <https://www.journals.upd.edu.ph/index.php/pej/article/view/8369>. Date accessed: 16 sep. 2025.