Ahmad NS, Ismail A, Yaakob MN, Ahmad NH. A Systematic Review of Values-Based Leadership Training for Middle Leader Teams in Schools: Methods, Impact, and Challenges. PERS [Internet]. 2025 Dec. 20 [cited 2026 Jan. 8];17(Isu Khas):191-210. Available from: https://ejournal.upsi.edu.my/index.php/PERS/article/view/12646