Xuan Quan Cao, Ngoc Dung Hoang, and Hoang Luong Nguyen. “Research and Development of a Luminance Responsivity Standard System at the Vietnam Metrology Institute”. Vietnam Journal of Science, Technology and Engineering 62, no. 2 (June 15, 2020): 3-6. Accessed July 15, 2026. https://vietnamscience.vjst.vn/index.php/vjste/article/view/118.