PHAM, Thi Thu Hien; PHAN, Quoc Hung; NGUYEN, Duy Anh; LE, Ngoc Bich. Design and implementation of a low cost optical based paint viscosity control device. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 60, n. 6, p. 1179–1190, 2022. DOI: 10.15625/2525-2518/16506. Disponível em: https://vjs.ac.vn/jst/article/view/16506. Acesso em: 10 jan. 2026.