Edwards, James Don, author
Richard D. Irwin, 1975
Buku Teks
Anthony, Robert N. (Robert Newton), 1916-2006, author
Richard D. Irwin, 1974
Buku Teks
Welsch, Glenn A., author
Learning System Company, 1977
Buku Teks
Terry, George Robert, author
Richard D. Irwin, 1982
Buku Teks
Barnes, A. James, author
Richard D. Irwin , 1978
Buku Teks