1. Carson, R. S., Radio Concepts: Analog, John Wiley &Sons, New York, 1990.
2. Clarke, K. K. and Hess, D. T., Communication Circuits: Analysis and Design, Addison- Wesley, Reading, 1971.
3. Colclaser, R. A., Neaman, D. A., and Hawkins, C. F., Electronic Circuit Analysis: Basic Principles, John Wiley & Sons, New York, 1984.
4. Espley, D. C., The Calculation of Harmonic Production in Yermionic Valves with Resistive Loads, Proc. IRE, vol. 21, pp.1439-1446, October, 1933.
5. Ghausi, M. S., Electronic Devices and Circuits: Discrete and Integrated, Holt, Rinehart and Winston, New York, 1985.