Andrianingsih, V., Waluya, S. B., & Sugianto, S. (2019). Mathematical Communication Ability Assessed By Student Self- efficacy In Learning The Two Stay Two Stray (TSTS) Model on Ability of Process Approach. Unnes Journal of Mathematics Education Research, 10(A), 140-146. Retrieved from https://journal.unnes.ac.id/sju/ujmer/article/view/36180