Darmilah, Siti, Sjaeful Anwar, and Ida Kaniawati. “Development of IPAS Project Modules With the 4STMD Method to Facilitate Project-Based Learning in Vocational School”. Jurnal Penelitian Pendidikan IPA 11, no. 6 (June 25, 2025): 498–508. Accessed December 13, 2025. https://jppipa.unram.ac.id/index.php/jppipa/article/view/11588.