Andriana Katoci Mawea, et al. “PROFESSIONALISM OF THE PRINCIPAL IN IMPROVING THE PERFORMANCE OF SOCIAL SCIENCE TEACHERS IN THE PRIVATE ELEMENTARY SCHOOL OF NGAWET WEST HALMAHERA”. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, vol. 15, no. 1, Jan. 2026, pp. 283-90, doi:10.36526/sosioedukasi.v15i1.7217.