Syukri, Muhamad Ngafif, and Sri Haryono. “Analisis Head Position Terhadap Laju Berenang Gaya Crawl”. Jumper: Jurnal Mahasiswa Pendidikan Olahraga 7, no. 1 (July 3, 2026): 145–154. Accessed September 2, 2026. https://jurnal.stokbinaguna.ac.id/index.php/JUMPER/article/view/5834.