Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Watanabe Minako and Sato Shuichi and Aoyagi Naritoshi,A suggestion and its trial of a supplementary lesson based on the student needs,"Research Reports of National Institute of Technology, Nagaoka College",0027-7568,"National Institute of Technology, Nagaoka College",2019,55,0,45-50,https://cir.nii.ac.jp/crid/1390846609801625344,https://doi.org/10.24806/rrnitnc.55.0_45