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
Balai Poestaka, 1932
Buku Klasik
S. Resowidjojo, author
Balai Pustaka, 1987
Buku Teks