Valanis, Barbara, author
Connecticut Appleton & Lange, 1999
Buku Teks
by Walter J. Pelton ...[et al.]
Harvard University Press, 1969
Buku Teks
edited by C. Glen Mayhall
Williams & Wilkins, 1996
Buku Teks
Morris, J.N.
Livingstone, 1975
Buku Teks
Fletchers, Robert H.
Williams and Wilkins, 1984
Buku Teks