Ismathulhuda, Azla, Hardeli Hardeli, Alizar Alizar, and Yerimadesi Yerimadesi. “Validity and Practicality of Project-Based E-Student Worksheet on Thermochemical Materials to Improve Learning Outcomes ”. Jurnal Penelitian Pendidikan IPA 8, no. 3 (July 31, 2022): 1433–1441. Accessed April 26, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1691.