Nampadsa, Pikul, Arun Suikraduang, and Piyatida Panya. 2022. “Development of a Digital Literacy Scale for High School Students”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 9 (2):559-78. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/256330.