Eko Setiyawan Dwipranoto, Rif’ati Dina Handayani, and Bevo Wahono. “Development of PjBL-Based Science Student Worksheets to Improve the Engineering Design Process and Learning Outcomes of Elementary School Students”. Jurnal Elementaria Edukasia 9, no. 2 (June 30, 2025): 3716–3730. Accessed July 12, 2025. https://www.ejournal.unma.ac.id/index.php/jee/article/view/13642.