O`Keeffe, Linda, author
McGraw-Hill, 1986
Buku Teks
Fraser, Cynthia, author
Springer, 2012
eBooks
Kirkpatrick, Lee A., author
Wadsworth and Cengage Learning, 2011
Buku Teks
Rijanto Tosin, author
Dinastindo, 1990
Buku Teks
Porter, Alan G.
Reading, Mass.: Addison-Wesley, c1985
Buku Teks