by Xiang, Xiaoqing, Yum, Sichang, Lian, Rong
Published in Social behavior and personality (01.09.2023)

by Xiang, Xiaoqing, Yum, Sichang, Lian, Rong
Published in Social behavior and personality (01.06.2020)

by 유현석, 염시창
Published in 한국초등수학교육학회지, 23(4) (30.11.2019)

by Yum, Sichang, Kang, Daejung
Published in The Institute of Educational Research Chonnam National University (30.11.2023)

by Yum, Sichang, Kang, Daejung
Published in The Institute of Educational Research Chonnam National University (31.01.2022)

by Lee, Dong Hun, Kang, Sunwoo, Yum, Sichang
Published in College student journal (01.09.2005)