Sastrarujis, P. (2022) “The Development of Online Learning Model to Improve Competency in Business Competition for Online Sellers”, Rajapark Journal. Bangkok, Thailand, 16(46), pp. 313–327. available at: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/256847 (accessed: 7 December 2025).