Cummings, L.L.
Richard D. Irwin, 1980
Buku Teks SO
Cummings, L.L.
Richard D. Irwin, 1980
Buku Teks SO
Michael, Stephen R.
McGraw-Hill, 1981
Buku Teks SO
edited by Aat Brakel
John Wiley & Sons, 1985
Buku Teks SO
Hartman, Edwin M.
Ballinger Publishing Company, 1988
Buku Teks SO