Aditya S, Novianto A, Diat Prasojo L. Principal’s transformational leadership as a catalyst for teacher performance improvement in an Indonesian elementary school. JPIP [Internet]. 2025 Oct. 15 [cited 2025 Dec. 18];18(2):99-108. Available from: https://journal.uny.ac.id/index.php/jpip/article/view/92327