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		Adi Guna, R., & 		A. Martana, N.
2015 Jun 25.  TINJAUAN YURIDIS TERHADAP KASUS PIETER RUMAROPEN TERKAIT PERTANGGUNGJAWABAN ATLET DALAM CABANG OLAHRAGA SEPAK BOLA. Kertha Wicara : Journal Ilmu Hukum. [Online] :