Sibuea, Bismar, Mardin Silalahi, Tiodora Silalahi, and Marhaeni K D Matondang. “Implementation of English Language Learning in the Elementary School Teacher Education Study Program of the Open University”. Global Education Journal 3, no. 2 (July 1, 2025): 549–555. Accessed December 4, 2025. https://journal.civiliza.org/index.php/gej/article/view/365.