Minarni, A. and Barus, L.N. 2023. Development of Desmos Electronic Students’ Activities Sheet (E-LKPD) based on the Problem Based Learning to Improve Students’ Mathematical Critical Thinking Skills. Formosa Journal of Science and Technology . 2, 1 (Jan. 2023), 137–150. DOI:https://doi.org/10.55927/fjst.v2i1.2730.