Taufik, I. and Istikomah 2026. The Importance of an Internal Quality Assurance System in Improving the Quality of Education in Madrasahs: Urgensi Sistem Penjaminan Mutu Internal Dalam Meningkatkan Kualitas Pendidikan di Madrasah. Indonesian Journal of Innovation Studies. 27, 2 (Sep. 2026), 10.21070/ijins.v27i2.1327. DOI:https://doi.org/10.21070/ijins.v27i2.1327.