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 "Weeraratne, Bilesha and Karunanayake, Chathurga and Institute of Policy Studies (Colombo, Sri Lanka)",Towards a developed urban transportation system : lessons for Sri Lanka,,Institute of Policy Studies of Sri Lanka,2022,Occasional paper series,,9789557397269,,https://cir.nii.ac.jp/crid/1130859204716999173