HELFERT, E. A. (1997). Techniques of financial analysis: A modern approach. IRWIN.
Čikaški stil citiranja (17. izdanje)HELFERT, Erich A. Techniques of Financial Analysis: A Modern Approach. IRWIN, 1997.
MLA način citiranja (8. izdanje)HELFERT, Erich A. Techniques of Financial Analysis: A Modern Approach. IRWIN, 1997.
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