Saifuddin. “PENGEMBANGAN BAHAN AJAR MATERI LARI SISWA SEKOLAH DASAR”. Jurnal Penjaskesrek 4, no. 1 (April 30, 2017): 10–20. Accessed August 3, 2026. https://ejournal.bbg.ac.id/index.php/penjaskesrek/article/view/775.