Tangwiriyasakul, Phakhanat, and Dhachakorn Thitiluck. “The Development of Using E-Procurement System in Private Sector”. Journal of Dhamma for Life 32, no. 1 (January 8, 2026): 386–401. accessed September 24, 2026. https://so08.tci-thaijo.org/index.php/dhammalife/article/view/5334.