HELFERT (Erich A.), . (2011). Techniques of Financial Analysis. New Delhi: Tata McGraw-Hil Publication Company Limited . Delhi.
HELFERT (Erich A.), . 2011. Techniques of Financial Analysis. New Delhi: Tata McGraw-Hil Publication Company Limited . Delhi.
HELFERT (Erich A.), . Techniques of Financial Analysis. New Delhi: Tata McGraw-Hil Publication Company Limited . Delhi. 2011.