TRINH, Hiep Xuan; DUA , Tran Van; QUANG, Ngo Van. Evaluating the surface film’s properties based on acoustic emission and contact voltage signals. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 59, n. 6, p. 786–797, 2021. DOI: 10.15625/2525-2518/59/6/15873. Disponível em: https://vjs.ac.vn/jst/article/view/15873. Acesso em: 10 jan. 2026.