Sholikhah, F., Raharjo, T.J. and Suhandini, P. 2020. The Effect of The STAD Learning Model Aided by Students Worksheet to Improve Critical Thinking Skills of Students. Journal of Primary Education. 9, 1 (Jan. 2020), 1-6. DOI:https://doi.org/10.15294/jpe.v11i1.35364.