1. Transistor radio
2. History - history of radio na tv broadcast.
3. United States early radio history.
1. Encyclopedia Bulgaria, 1999 edition
2. Short Bulgarian Encyclopedia
3. Broadcasting Propaganda. Philo C. Wasburn, 1992.
4. The Voice of Amerika. Laurien Alexandre, 1986.
Rich Samuels, radio and tv personality.
Stacey Thorp - radio personality.
Ronn Owens, radio and tv personality in SF Bay area.
As well as our elderly reltives - witnesses of the "boom" of television and some of them of radio!