Fatma HW, Sulton S. Coaching and Mentoring-Based Human Resource Development Management to Improve Teacher Self-Efficacy at SMKN 1 Slahung. JPK [Internet]. 2026 May 20 [cited 2026 May 22];11(SpecialIssue(2):177–187. Available from: http://journal.umpo.ac.id/index.php/JPK/article/view/13072