ISMAIL; HAJIJAH NOOR. Demonstration of a 3D PVD Vacuum Coating System for Educational Training and Knowledge Improvement. Journal of Social and Community Service, [S. l.], v. 5, n. 2, p. 47–52, 2026. DOI: 10.31004/jestmc.v5i2.455. Disponível em: https://jes-tm.org/index.php/jestmc/article/view/455. Acesso em: 5 sep. 2026.