Rueangwiset, saranya, Thanyaluc Khechornphak, and Wanida Pharanat. 2020. “Development of Chemistry learning and solving problem ability by conductivity 5E with STAD technique activity of Muttayomseuksa 5”. Journal for Developing the Social and Community 7 (2). Bangkok, Thailand:347-62. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/240663.