Purcell, Edwin J. (Edwin Joseph), 1901-, author
Erlangga, 2004
Buku Teks
Sutan Negoro
Balai Aksar, 1981
Buku Teks
Lightstone, A. H., author
Harper & Row, 1965
Buku Teks
Wilcoxm, Alfred B.
Houghton Mifflin, 1971
Buku Teks
Courant, R., author
Blackie and Son Ltd., 1960
Buku Teks