Gobran, Alfonse
Beginning algebra
Prindle, Weber & Schmidt, 1975
 Buku Teks SO
Kuebler, Roy R.
Statistics : a beginning
John Wiley & Sons, 1976
 Buku Teks SO
Wine, Lowell R.
Beginning statistics
Winthrop Publisher, 1976
 Buku Teks SO
Levenbach, Hans
The Beginning forecaster
Lifetime Learning, 1981
 Buku Teks SO
Streeter, James
Beginning algebra : form a
McGraw-Hill , 1993
 Buku Teks SO