Tarigan, Jeri Franda, et al. “Efforts to Improve Learning Outcomes in Dribbling Football Games through Learning Variations With Audiovisual Media”. Jumper: Jurnal Mahasiswa Pendidikan Olahraga, vol. 1, no. 1, Oct. 2020, pp. 27-36, doi:10.55081/jumper.v1i1.123.