https://drive.google.com/folderview?id=1Hm8ulZXu4MHWnkgzcs0bYtd4RRCvI2N2
An Introduction to Radio Frequency Engineering.pdf
arrl-1981-radio-amateur-handbook.pdf
ARRL Solid State Design for the Radio Amateur - Hayward DeMaw.pdf
El Arte y Destreza de la Radio Telegrafia.pdf
Las Antenas - Brault - Piat.pdf
Pratical antennas handbook.pdf
Radio Frequency Electronics John Hagens.pdf