Kaplan, Robert M., author
Allyn and Bacon , 1987
Buku Teks
Kuzma, Jan W., author
Mayfield Publ., 1984
Buku Teks
Smith, Frank C., author
Richard D. Irwin, 1960
Buku Teks
Bowen, Earl K., author
McGraw-Hill, 1982
Buku Teks
Dunn, Olive Jean, author
John Wiley & Sons, 1977
Buku Teks