Kurniawan O, Soegijono B. Creation and Evaluation of a Polyurethane/Carbon/Zinc Oxide Film Composite for Use as a Coating Material. J. Konv. Ener. Manuf. [Internet]. 2025 Jul. 31 [cited 2026 May 30];10(2):185 – 198. Available from: https://journal.unj.ac.id/unj/index.php/jkem/article/view/55611