Chuphueak, R., W. Leelawittayanon, and S. Prueksaaroon. “Covid-19 Antigen Test Kit Distribution System Based-on Blockchain Technology”. Science & Technology Asia, vol. 28, no. 4, Dec. 2023, pp. 213-26, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/250509.