KARDI, Kardi. Standard Operating Procedure (SOP) Upaya Peningkatan Mutu Layanan Perpustakaan Sekolah Tinggi Agama Islam Negeri (STAIN) Ponorogo. Pustakaloka, [S. l.], v. 2, n. 1, p. 85–104, 2010. DOI: 10.21154/pustakaloka.v2i1.853. Disponível em: https://jurnal.iainponorogo.ac.id/index.php/pustakaloka/article/view/853. Acesso em: 18 jan. 2025.