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 "Klepac, Goran and Kopal, Robert and Mršić, Leo",Developing churn models using data mining techniques and social network analysis,,"Information Science Reference, an imprint of IGI Global",2015,Research essentials,,9781466662889,,https://cir.nii.ac.jp/crid/1130000794653846144