Siregar, Ferdinand J.P.
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 1999
UI - Skripsi (Membership)
Melcher, Arlyn J
Rineka Cipta, 1990
Buku Teks
Melcher, Arlyn J
Rineka Cipta, 1990
Buku Teks
William G. Scott ... [and others]
Dahara Prize, 1992
Buku Teks
Gibson, James L.
[publisher not identified], [date of publication not identified]
Buku Teks