Syhalath, C., K. Phomkeona, V. Chounlamany, T. Yamaguchi, and V. Phouthavong. “Development of a Smartphone-Based Colorimetric Detection for Quantification of Vitamin C in Dietary Supplements and Skin Care Products: https://doi.Org/10.69692/SUJMRD0802206”. Souphanouvong University Journal Multidisciplinary Research and Development, vol. 8, no. 2, Dec. 2022, pp. 206-15, http://www.su-journal.com/index.php/su/article/view/219.