Erlina Yuliastuti. “APPLICATION OF THE PROJECT-BASED LEARNING MODEL IN ELEMENTARY SOCIAL STUDIES LEARNING PLANNING TO DEVELOP 21ST CENTURY SKILLS”. International Journal of Educational Review, Law And Social Sciences (IJERLAS) 5, no. 4 (July 31, 2025): 3702–3707. Accessed February 28, 2026. https://radjapublika.com/index.php/IJERLAS/article/view/3840.