Titus, Harold H.
Ethics for today / Harold Titus
merican Book Company, 1957
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Prof. Dr. Nurcholish Madjid
Pustaka Pelajar, 2003
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Budhy Munawar-Rachman
Ensiklopedia Nurcholish Madjid
Mizan, 2006
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Fried, Robert C.
Comparative political institutions
Macmillan, 1968
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A. Ramlan Surbakti
Memahami Ilmu Politik : Konsep-Konsep Dasar
PT Grasindo, 2024
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