Zai, Pitra Yani, et al. “Analysis of Teacher Professionalism and Competence in Educational Management at SMP Negeri 2 Gunungsitoli Utara”. GEN BIONIX: Jurnal Ilmiah Pendidikan Biologi, vol. 4, no. 2, June 2026, pp. 154-60, doi:10.56207/genbionix.v4i2.968.