Ijah, Titin, Totok Sumaryanto Florentinus, and I Made Sudana. “The Quality Assurance of Islamic Boarding School Based on Total Quality Management (TQM)”. Educational Management 10, no. 1 (April 30, 2021): 42-49. Accessed December 21, 2024. https://journal.unnes.ac.id/sju/eduman/article/view/41437.