Marinda, Lantip Diat Prasojo. The Effect of Principal’s Academic Supervision, Teacher Professional Learning Community Activities, and Teacher Professional Competence on State Vocational High School Teachers’ Performance in Indragiri Hilir Regency. IJETR [Internet]. 2025 Mar. 15 [cited 2026 Jun. 18];3(1):1-14. Available from: https://jurnalinternasional.com/index.php/ijetr/article/view/394