Sookkhee, S., & Sookkhee, P. (2023). A Study of Blended Learning Management during the COVID-19 Pandemic among Mathematics Students at Sisaket Rajabhat University . Journal of Roi Et Rajabhat University, 17(1), 154–167. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/255592