Walsh, William S.
Philadelphia, J.B. Lippincott
Buku Referensi
Dubois, Abbe J.A.
The Clarendon Press, 1897
Buku Teks SO
Kightly, Charles
Thames and Hudson, 1986
Buku Referensi
Tun, Li-Chen
Buku Teks
Gennep, Arnold Van
The University of Chicago Press, 1975
Buku Teks