McKeown, Celine, author
CRC Press, 2008
Buku Teks
Morton, Joyce, author
Prentice-Hall, 1998
Buku Teks
Levin, Howard S., author
John Wiley & Sons, 1956
Buku Teks
S. Prajudi Atmosudirdjo, author
[publisher not identified], 1973
Buku Teks
S. Prajudi Atmosudirdjo, author
Februari, 1973
Buku Teks