Al-Sharidah M. Extent of mastering Twenty-First-Century E-Learning competencies among Prince Sattam Bin Abdulaziz University Staff. AmazInv [Internet]. 2021 Jun. 29 [cited 2025 Nov. 5];10(41):237-49. Available from: https://amazoniainvestiga.info/index.php/amazonia/article/view/1420