by Eugene W. Nester ... [et. al.]
Holt, Rinehart and Winston, 1973
Buku Teks
Dixon, Bernard
W.H. Freeman 1994, 1994
Buku Teks
Linton, Alan H., author
John Wiley & Sons, 1982
Buku Teks
Black, Jaquelyn G., author
John Wiley & Sons, 2008
Buku Teks
Stanier, Roger Y., author
Prentice-Hall, 1963
Buku Teks