Cavin, Jerry D.
The amateur astronomer’s guide to the deep-sky catalogs
Springer, 2012
 eBooks
The radio amateur's handbook
American Radio Relay League
American Radio Relay League, 1969
 Buku Referensi
The radio amateur's handbook
American Radio Relay League
The American Radio Relay League, Inc., 1962
 Buku Referensi
Kasser, Joe
Software for amateur radio
Tab Books, 1984
 Buku Teks
Mackerras, Colin
Amateur theatre in China 1949-1966
Australian National Univ.Press, 1973
 Buku Teks