HELFERT ERICH A. (2000). TECHNIQUES OF FINANCIAL ANALYSIS (10TH.). MCGRAW-HILL.
Dyfyniad Arddull ChicagoHELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. 10TH. NEW YORK: MCGRAW-HILL, 2000.
Dyfyniad MLAHELFERT ERICH A. TECHNIQUES OF FINANCIAL ANALYSIS. 10TH. MCGRAW-HILL, 2000.
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