ชูเชิด ป., & ธีรานุตร พ. (2018). Make Practical Used Broadband Third Generation Mobile Network (3G) or Forth Generation Mobile Network (4G) for Learning Management System in the 21st Century Learning Skill. Journal of Humanities and Social Sciences, Rajapruk University, 3(3), 84–95. Retrieved from https://so03.tci-thaijo.org/index.php/rpu/article/view/112626