Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Frank W. Anderson and Kent R. Fuller,Rings and Categories of Modules,Graduate Texts in Mathematics,0072-5285,Springer New York,1992,,,,https://cir.nii.ac.jp/crid/1361699995343373568,https://doi.org/10.1007/978-1-4612-4418-9