Boonkanha, N. ., P. . Hansmer, P. . Chidchom, and D. . Phukhon. “Development of a Data Recording System for COVID-19 Vaccine through the HimproOnline Program, Si Sa Ket Hospital”. Journal of Health Science of Thailand, vol. 33, no. Supplement 1, Oct. 2024, pp. S148-S158, https://thaidj.org/index.php/JHS/article/view/15943.