Herdianto, H., I. Iyakrus, and M. . Usra. “Pengembangan Model Pembelajaran Renang Melalui Materi Pengenalan Aktivitas Air Di Sekolah Dasar : (The Development of a Swimming Learning Model Through The Introduction of Water Activities in Primary School)”. Indonesian Journal of Sport Science and Coaching, vol. 2, no. 3, Nov. 2020, pp. 129-38, doi:10.22437/ijssc.v2i3.10517.