Postlethwait, John H., author
Brooks/Cole, Thomson Learning, 2003
Buku Teks
Keosian,John
Reinhold Publishing Corporation, 1964
Buku Teks
Branley, Franklyn M.
Ginn and Company, 1965
Buku Teks
Tobin, Allan J., author
Harcourt College Publishing, 2001
Buku Teks
by William K. Purves ... [et al.]
Salt lake City Sinauer Associates , 1998
Buku Teks