Sadler, A. L.
Charles E. Tuttle, 1962
Buku Teks
Watterson, Joseph, author
W.W. Norton, 1968
Buku Teks
Powell, Robert, author
Periplus, 2004
Buku Teks
Varley, H. Paul
Praegar Publisher , 1973
Buku Teks
Beasley, W.G
University of California Press , 1999
Buku Teks