Fahad F. Alruwaili และ -. (2020) e-Learning Chain: A Secure Blockchain Approach to e-Learning & Certification Systems. <i>International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies</i>, <i>11</i>(16), 11A16N: 1-11.Fahad F. Alruwaili และ -. "e-Learning Chain: A Secure Blockchain Approach to e-Learning & Certification Systems". International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies 11 (2020):11A16N: 1-11.Fahad F. Alruwaili และ -. e-Learning Chain: A Secure Blockchain Approach to e-Learning & Certification Systems. TuEngr Group:ม.ป.ท. 2020.