Trask, R.L., author
Routledge, 1996
Buku Referensi
El-Dahdah, Antoine, author
Librairie Du Liban Publishers, 1993
Buku Referensi
Pei, Mario A., author
Philosophical Library, 1954
Buku Referensi
Pei, Mario A., author
Totowa, New Jersey Littlefield, Adams 1975
Buku Referensi
Pei, Mario A., author
Peter Owen, 1958
Buku Referensi