Perlick, Walter W.
Richard D. Irwin, 1981
Buku Teks
Terry, George Robert
Richard D. Irwin, 1982
Buku Teks
Anthony, Robert Newton, 1916-2006
Richard D. Irwin, 1974
Buku Teks
Weston, John Fred, 1916-
Richard D. Irwin , 1982
Buku Teks
Welsch, Glenn A.
Learning System Company, 1977
Buku Teks