Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Batbold Tumurbat and Sarentonglaga,CALCULATE THE RETURN OF INVESTMENT IN EDUCATION IN MONGOLIA BY RETURN-COST RATIO AND NET PRESENT VALUE METHOD,Asian journal of management sciences & education,21868441,Chikusei : Leena and Luna International,2019-07,8,3,56-62,https://cir.nii.ac.jp/crid/1523669554871520384,