Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Enomoto Hiroyoshi and Hayashi Yusuke and Hirashima Tsukasa,"Design, Development and Experimental Use of Problem-Posing Exercise System for Factorization",Transactions of Japanese Society for Information and Systems in Education,13414135,Japanese Society for Information and Systems in Education,2020-07-01,37,3,206-211,https://cir.nii.ac.jp/crid/1390003825195089152,https://doi.org/10.14926/jsise.37.206