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RATIH DWI KUSUMANINGTYAS, 071148015 (2013) STRATEGI PUBLIC RELATIONS PT PETROKIMIA GRESIK MELALUI PROGRAM CSR BANK SAMPAH MEDURAN BERSATU (Studi Kasus Strategi Public Relations PT Petrokimia Gresik Melalui Program CSR Bank Sampah Meduran Bersatu). Thesis thesis, UNIVERSITAS AIRLANGGA.