Siti Syarifah, Liah. “Desain Mutu Pesantren Berbasis Total Quality Management (TQM)”. NIẒĀMUL`ILMI : Jurnal Manajemen Pendidikan Islam 5, no. 1 (March 31, 2020): 68-82. Accessed September 30, 2020. https://ejournal.staisyamsululum.ac.id/index.php/nizamulilmi/article/view/50.