Gea, Marina, Asnil Zebua, Erlin Karlin Telaumbanua, Esni Perdamaian Gulo, Ike Nirwana Waruwu, Riska Indah Ester Liana Zebua, and Natalia Kristiani Lase. 2026. “Teacher Professionalism in Learning Implementation An Exploratory Study at SMP Negeri 5 Lahewa”. GEN BIONIX: Jurnal Ilmiah Pendidikan Biologi 4 (2):132-39. https://doi.org/10.56207/genbionix.v4i2.980.