Anwar, S. ., Sumarna , O. ., & Mulyadi , A. . (2023). Feasibility Analysis of Thermochemistry Senior High School Chemistry Textbook Based on Criteria of Four Steps Teaching Material Development Method . Jurnal Penelitian Pendidikan IPA, 9(3), 1394–1401. https://doi.org/10.29303/jppipa.v9i3.2770