Wahyudiati, Dwi, and Devi Qurniati. “Improving Students’ Critical Thinking Skills Through the Development of E-Learning-Based Chemistry Textbooks”. Journal of Research in Mathematics, Science, and Technology Education, vol. 2, no. 2, Oct. 2025, pp. 155–161, https://doi.org/10.70232/jrmste.v2i2.41.