Gaya APA
Orr, W, I., Cowan, S, D. (1982).
The Radio Amateur, Antenna Handbook (1).
Amerika Serikat:
Radio Publications, Inc.
Gaya MLA
Orr, William, I.., Cowan, Stuart, D..
"The Radio Amateur, Antenna Handbook".
1
Amerika Serikat:
Radio Publications, Inc,
1982.
.