Suntornmeth, Pakorn, Panupong Pisjan, and Wutthichai Bualek. “Information Retrieval System of the Tree by Using QR Code Technology”. RMUTL Journal of Business Administration and Liberal Arts 5, no. 1 (June 30, 2017): 1–13. Accessed May 18, 2024. https://so05.tci-thaijo.org/index.php/balajhss/article/view/94693.