CHURAHMAN, Taufik. Principal’s Leadership Style Correlation With Improved External Quality Assurance System: Korelasi Gaya Kepemimpinan Kepala Sekolah Dengan Peningkatan Sistem Penjaminan Mutu Eksternal. Halaqa: Islamic Education Journal, [S. l.], v. 6, n. 1, p. 51–57, 2022. DOI: 10.21070/halaqa.v6i1.1603. Disponível em: https://halaqa.umsida.ac.id/index.php/halaqa/article/view/1603. Acesso em: 8 sep. 2025.