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 "Psacharopoulos, George and Rojas, Carlos and Velez, Eduardo",Achievement evaluation of Colombia's Escuela nueva : is multigrade the answer?,,"Technical Dept. Latin America and the Caribbean Region, The World Bank",1992,Policy research working papers,,,,https://cir.nii.ac.jp/crid/1130000794067862400