Wheeler, Ruric E.
Modern mathematics : an elementary approach
Brooks/Cole, 1970
 Buku Teks
Wheeler, Ruric E.
Modern mathematics: an elementary approach
Brooks/Cole, 1967
 Buku Teks
Wheeler, Ruric E.
Modern mathematics an elementary approach
Brook/Cole, 1969
 Buku Teks
Paige, Donald D.
Elementary mathematics / by Donald D. Paige
Prindle, Weber & Schmidt Inc., 1969
 Buku Teks
Nichols, Eugene D.
Mathematics for the elementary school teacher / Eugene D. Nichols
Holt, Rinehart and Winston, 1971
 Buku Teks