Analisis hubungan komponen manajemen modal kerja terhadap valuasi saham dan profitabilitas perusahaan sektor usaha manufaktur yang tercatat di bursa efek indonesia periode 2008-2012 = Analysist of association working capital management component with market valuation and profitability on manufacture firms that listed on indonesia stock exchage for the periods 2008-2012 / Novrina Riastiyani Efendi