edited by Ralph W. Hale
Simon & Schuster, 1986
Buku Teks
Galang Anantarqi, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2021
UI - Skripsi (Membership)
Powell, Sheppard T., author
McGraw-Hill, 1954
Buku Teks
Maier, Franz J., author
McGraw-Hill, 1963
Buku Referensi
Rosa, Frank, author
McGraw-Hill, 1985
Buku Referensi