Burke, D. M.
E.P. Dutton, 1975
Buku Teks
Andric, Ivo
London Lincolns-Prager Publ. 1961
Buku Teks
El Fadl, Khaled Abou, author
Serambi Ilmu Semesta, 2006
Buku Teks
Naqvi, Syed Nawab Haider, author
Kegan Paul International, 1993
Buku Teks
edited by Peter G. Gowing and Robert Day McAmis
Solidaridad Pub. House, 1974
Buku Teks