Wheeler, Ruric E.
Mathematics: an everyday language
John Wiley & Sons, 1979
 Buku Teks SO
Miller, Charles David, 1942-
Mathematics: an everyday experience/ Charles D. Miller
Scott, Foresman and Co., 1978
 Buku Teks SO
Mathematics
Hemming, 1998
 Multimedia
Bergamini, David
Mathematics
Time Incorporated, 1963
 Buku Referensi
Collier, Leonard Dawson
Everyday Spanish
St. Paul's House Warwick Lane, 1973
 Buku Teks SO