Herbirowo, S., M. D. Mahendra, M.I. Maulana, A. Trenggono, and U. M. R. Paturi. “Manufacturing Polyurethane Slag from Composite Using Polyol from Polyethylene Plastic Waste”. Physics and Chemistry of Solid State 26, no. 4 (December 26, 2025): 923–934. Accessed January 10, 2026. https://journals.pnu.edu.ua/index.php/pcss/article/view/8691.