Plano, Jack C., author
Rajawali, 1989
Buku Referensi
Lazuardi Adi Sage, author
Citra, 2003
Buku Teks
S. Hidajat, author
Djember Sumber Ilmu [t.th.]
Buku Referensi
Artikel Jurnal
Centre for Strategic and International Studies, 1996
Majalah, Jurnal, Buletin