Suastrawan, K.E. et al. 2021. The Effectiveness of Science E-Modules for Class VII Junior High Schools Based on Socioscientific Issues to Improve Students’ Critical Thinking Skills. Journal of Science Education Research. 5, 2 (Oct. 2021), 1–9. DOI:https://doi.org/10.21831/jser.v5i2.42877.