Okawa, Ryuho
IRH-Press , 1991
Buku Teks
Mohammad Iqbal
Kitab Publishing House, 1974
Buku Teks
Gellner, Ernest
Routledge & Kegan Paul, 1974
Buku Teks
edited by David Greenaway, Michael Bleaney, and Ian Stewart
Routledge, 1991
Buku Referensi
Kymlicka, Will
Clarendon Press, 1990
Buku Teks