COOPER W.D, HELFRICK.D, . (2002). MODERN ELECTRONIC INSTRUMENTATION & MEASUREMENT TECHNIQUE. NEW DELHI: PHI LEARNING PUB.
COOPER W.D, HELFRICK.D, . 2002. MODERN ELECTRONIC INSTRUMENTATION & MEASUREMENT TECHNIQUE. NEW DELHI: PHI LEARNING PUB.
COOPER W.D, HELFRICK.D, . MODERN ELECTRONIC INSTRUMENTATION & MEASUREMENT TECHNIQUE. NEW DELHI: PHI LEARNING PUB. 2002.