Post, Alexandra Merle
Martinus Nijhoff Publishers, 1983
Buku Teks
The MITT Press, 1980
Buku Teks
Kronmiller, Theodore G.
Oceana Publications, Inc, 1980
Buku Teks
Mahmoudi, Said
Almqvist & Wiksel International, 1987
Buku Teks
edited by Lewis M. Alexander
Ohio State University Press, 1967
Buku Teks