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		Saputra, Heri, 		Adiputra, N., AND 		Ali Imron, Muh..
" PENAMBAHAN LATIHAN CORE STABILITY PADA WILLIAM FLEXION DALAM MENINGKATKAN KEKUATAN OTOT DASAR PANGGUL PADA IBU MULTIPARA" <em>Sport and Fitness Journal</em> [Online], (28 February 2017)