Muhammad Khalil Gibran, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2021
UI - Skripsi (Membership)
Buku Teks
Adams, Preston, author
Addison-Wesley, 1970
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 1948
Buku Teks
Dunkerly, David
Routledge, 1972
Buku Teks