Saputra, Roni Agus, Herpratiwi Herpratiwi, and Caswita Caswita. “Developing a STEM-Based students’ Worksheet Building Material in Elementary School Bandar Lampung City”. Jurnal Prima Edukasia 8, no. 2 (August 14, 2020): 145–155. Accessed May 9, 2025. https://journal.uny.ac.id/index.php/jpe/article/view/33478.