The The Influence of Coaching and Motivation-Based Principal Supervision on the Professionalism of Elementary School Teacher Performance. cakrawala-ups [Internet]. 27 Mei 2026 [dikutip 28 Mei 2026];20(1):130-4. Tersedia pada: https://cakrawala.upstegal.ac.id/index.php/cakrawala/article/view/573