Tran, Quang-Phu, Van-Da Dao, and Van-Hoi Pham. 2020. “Characteristics of Plasma Electrolytic Oxidation Coatings on 6061 Al Alloy Prepared at Different Current Densities”. <i>Vietnam Journal of Science and Technology</i> 58 (6). Hanoi, VN:699-708. https://doi.org/10.15625/2525-2518/58/6/15053.