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Happy Lumbantobing, Mayor M. H. Manurung, Pitriana Tandililing, Agnes Teresa Panjaitan, Rina Ananta Sumawardani Sitepu. Students’ Abilities and Activities Learning in Mathematics at Junior High School: The Discovery Learning Model Using a Scientific Approach. IJSBAR [Internet]. 2025 Jun. 13 [cited 2025 Oct. 10];77(1):38-49. Available from: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/17463