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
Carver, Norman F.
Shokokusha, 1955
Buku Teks