Syukri, M.N. and Sri Haryono 2026. Analisis Head Position Terhadap Laju Berenang Gaya Crawl. Jumper: Jurnal Mahasiswa Pendidikan Olahraga. 7, 1 (Jul. 2026), 145–154. DOI:https://doi.org/10.55081/jumper.v7i1.5834.