Happy Lumbantobing, Mayor M. H. Manurung, Pitriana Tandililing, Agnes Teresa Panjaitan, & Rina Ananta Sumawardani Sitepu. (2025). Students’ Abilities and Activities Learning in Mathematics at Junior High School: The Discovery Learning Model Using a Scientific Approach. International Journal of Sciences: Basic and Applied Research (IJSBAR), 77(1), 38-49. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/17463