Riky Permadi. “MUTU LAYANAN PENDIDIKAN MADRASAH TSANAWIYAH NAHDHATUL ULAMA OGAN KOMERING ULU TIMUR”. UNISAN JURNAL, vol. 2, no. 3, Mar. 2023, pp. 841-9, https://journal.an-nur.ac.id/index.php/unisanjournal/article/view/1270.