著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Decasa, George C.",The Quranic concept of umma and its function in Philippin muslim society,,Editrice Pontificia UniversitA︡ Gregoriana,1999,Interreligious and intercultural investigations,,8876528121,,https://cir.nii.ac.jp/crid/1130282270481289088