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		Syam, Masrum, 		Muliarta, I Made, 		Irfan, Muhammad, 		Adiputra, Nyoman, 		Weta, Wayan, AND 		Imron, Ali.
" PERBANDINGAN EFEKTIVITAS KONTRAKSI (25%, 50% DAN 75%) DARI NILAI KONTRAKSI MAKSIMAL PADA TEKNIK CONTRACT RELAX TERHADAP PENINGKATAN FLEKSIBILITAS OTOT HAMSTRING" <em>Sport and Fitness Journal</em> [Online], (12 January 2018)