Mardiyah, M. “Total Quality Management for High Quality Education Strategy at Pondok Modern Darussalam Gontor Ponorogo”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, vol. 15, no. 2, Aug. 2023, pp. 745-56, doi:10.37680/qalamuna.v15i2.2604.