REFERENCES
- HELLINGS (SJ). Transistor Audio Amplifiers. 1968. Philips Technical Library, Netherlands
- LENERT (LH). Semiconductor Physics, Devices and Circuits. 1968. Merrill Pub. Ohio.
- FITCHEN (FC). Transistor Circuit Analysis and Design. 1966. Van Nostrand Co. N.Y.
- SHARMA (RS) and JAMWAL (KKS). On the Darlington Pairs, JIETE. 19, 4; 1973.
- SHEA (RF). Amplifier Handbook. 1966. McGraw-Hill N.Y.