Sittivongsa, Boonpeng, and Kanokon Boonmee. 2023. “Factors Affecting Ordering Decisions Buy Products Through the Online Service Provider Food Delivery Online in Nong Khai Province”. Rajamangala University of Technology Tawan-Ok Social Science Journal 12 (2):95-103. https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/267938.