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Ahnaf Sinaroja A, Raharjo S. PENGARUH LATIHAN VARIASI PLANK DAN PUSH UP TERHADAP KEKUATAN OTOT LENGAN KIPER SEPAK BOLA AKADEMI AREMA FC U-16. GREAT [Internet]. 2025 Aug. 6 [cited 2025 Dec. 6];1(2):2642-8. Available from: https://journaledutech.com/index.php/great/article/view/486