Hsueh, Chung-sa
Commercial Press, 1940
Buku Referensi
Steel, Duncan, author
John Wiley & Sons, 2000
Buku Referensi
Irwin, Keith Gordon
homas Y. Crowell, 1963
Buku Teks
S. Resowidjojo, author
Balai Pustaka, 1987
Buku Referensi
Tjokorda Rai Sudharta, author
Balai Pustaka, 1989
Buku Referensi