@article{oai:barrel.repo.nii.ac.jp:02000025,
 author = {西村, 友幸},
 issue = {3},
 journal = {サンライズ : 珠算人の月刊情報誌, Sun Rise},
 month = {Jun},
 pages = {36--37},
 title = {上方求ム! リバース十三商割 【第三幕】},
 volume = {27},
 year = {2023}
}