著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Yudistida D.,Efficiency in Islamic banking: An empirical analysis of eighteen banks,Islamic Economic Studies,,,2004,12,1,1,https://cir.nii.ac.jp/crid/1370848657412269697,