N. Saputra, Hartati, and M. . Usra, “Peningkatan Hasil Belajar Lompat Jauh Melalui Alat Bantu Bola Gantung dan Lompat Kotak: (Students’ Improvement Of Long Jump Learning Outcomes Through Hanging Ball And Box Jump Media Tools In The Seventh)”, IJSSC, vol. 2, no. 2, pp. 64-72, Jul. 2020.