EFEKTIFITAS SPORT MASSAGE DAN MASSAGE GUN TERHADAP KELENTURAN OTOT HAMSTRING ATLET ATLETIK SPRINT PUTRA 100 DAN 200M SMAN OLAHRAGA SIDOARJO. IPSSJ [Internet]. 2025 Jun. 3 [cited 2026 Oct. 21];2(03 Juni):3126-38. Available from: https://ipssj.com/index.php/ojs/article/view/416