Markus Iyus Supiandi, Yakobus Bustami*, YuniartiEssiUtami, DidinSyafruddin, NyeriaElisabeth. “Critical Thinking Skills on Human Digestive System Materials: Contextual Teaching and Learning Based Gender”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 13, no. 1, Jan. 2022, pp. 30-37, doi:10.17762/turcomat.v13i1.11925.