Niswonger, Clifford Rollin, 1907-, author
South-Western Publishing, 1969
Buku Teks
Thacker, Ronald J., author
Prentice-Hall, 1979
Buku Teks
Helmkamp, John G., author
John Wiley & Sons, 1989
Buku Teks
Needles, Belverd E., author
Houghton Mifflin, 1990
Buku Teks
Needles, Belverd E., author
Houghton Mifflin, 1984
Buku Teks