Masta, Ngia, Kisei Manai, and Manogari Sianturi. 2025. “Evaluating Effectiveness, Relevance, and Endurance in a Solar-Powered DC Hands-On Activity Using Rasch Modeling”. EduMatSains : Jurnal Pendidikan, Matematika Dan Sains 10 (2):91-106. https://doi.org/10.33541/edumatsains.v10i2.7300.