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
"Sawa, George",Music performance practice in the early ʿAbbāsid era 132-320 AH/750-932 AD,,Pontifical Institute of Mediaeval Studies,1989,Studies and texts,,0888440928,,https://cir.nii.ac.jp/crid/1130000797029002368