Wilkinson, John, author
Springer, 2012
eBooks
Hibberd, James Shirley, author
Groombridge, 1953
Buku Teks
Rotovision , 2010
Buku Referensi
Mackerras, Colin, author
Australian National Univ.Press, 1973
Buku Teks
American Radio Relay League
American Radio Relay League, 1969
Buku Referensi