Tian Fitriyantika, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi (Membership)
Gordon, Robert Aaron, author
Harper & Brothers, 1952
Buku Teks
Dauten, Carl Anton, 1913-, author
South-Western Publishing, 1978
Buku Teks
Valentine, Lloyd M., author
South-Western Publishing, 1991
Buku Teks
Ruli Tanio, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)