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 "Bangladesh Institute of Development Studies and Islam, Faridul",Factor productivity and factor substitution : the case of Bangladesh railways,,Bangladesh Institute of Development Studies,1984,Research report,,,,https://cir.nii.ac.jp/crid/1130000794436268672