Bahari, Priya Kusuma Bahari, et al. “Development of Flashcard Media Using the Peer Teaching Method for Material on the Effect of Heat on Temperature and the State of Matter”. ELSE (Elementary School Education Journal): Jurnal Pendidikan Dan Pembelajaran Sekolah Dasar, vol. 9, no. 2, Sept. 2025, doi:10.30651/else.v9i2.25674.