Ghozali, Muhammad, Witta Kartika Restu, Evi Triwulandari, and Lutfi Rizky Fauzi. 2023. “Preparation of Polyurethane-Modified Epoxy Coating Materials Based on Vegetable Oil Derivated Ester”. Jurnal Sains Materi Indonesia 25 (1):21-28. https://doi.org/10.55981/jsmi.2023.271.