Damayanti, Indah, and Sukirno Sukirno. “PowerPoint Learning Media to Improve Activeness and Learning Outcomes in the Economics Subject”. Curricula: Journal of Curriculum Development 4, no. 1 (June 27, 2025): 357–368. Accessed July 1, 2026. https://ejournal-education.upi.edu/curricula/article/view/459.