Tongsamsee, Phat. “The Development of Access System for Computer History Data With QR Code For Teachers in Electronics Department of Ratchaburi Technical College”. Vocational Education Central Region Journal 3, no. 2 (December 30, 2019): 40–47. Accessed May 3, 2024. https://so06.tci-thaijo.org/index.php/IVECJournal/article/view/246567.