Yerizon, Y., Ahda, Y. and Amsari, D. 2019. The influence of contextual approach to students’ problem solving ability of Class IX of SMP Negeri 1 Bayang. EDUCATUM Journal of Science, Mathematics and Technology. 6, 2 (Dec. 2019), 1–8. DOI:https://doi.org/10.37134/ejsmt.vol6.2.1.2019.