Buck, Solon Justus
Neb. University of Nebraska Press, 1965
Buku Teks
Fitzgerald, Walter
Methuen, 1952
Buku Teks
Basin-Yayim ve Turizm Bakanligi Yayinlarindan, 1961
Buku Teks
McDiarmid, Orville John
John Hopkins University Press, 1977
Buku Teks
Paul H. Elwood, Jeremy B. Albertus, editor
Nova Science Publisher, 2008
Buku Teks