Hasibuan, A. I., H. Asari, and N. Neliwati. “Development of Quality and Integrity Islamic Higher Education in North Sumatra in KOPERTAIS IX”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, vol. 15, no. 2, Aug. 2023, pp. 581-90, doi:10.37680/qalamuna.v15i2.2777.