Sinuhaji, Ferdinand, Juli Loisiana Butar-Butar, Agus Susanto Ginting, Jefrin Anugrah Humendru, Daniel Ebenejer Tarigan, Hosea Tarigan, and Beril Syahputera Ginting. 2023. “Enhancing Students’ Enthusiasm for Learning Mathematics at SMP Negeri 1 Berastagi”. Jurnal Pengabdian Masyarakat Bestari 2 (3):249-58. https://doi.org/10.55927/jpmb.v2i3.3306.