Drooyan, Irving
Introductory algebra : a guided worktext
John Wiley & Sons, 1982
 Buku Referensi
Stevens, Lee A.
Elementary algebra
Wadsworth, 1970
 Buku Teks
Hoffer, Alan R.
Elementary algebra
Prindle, Weber & Schmidt, 1969
 Buku Teks
Drooyan, Irving
Elementary algebra : structure and skills
John Wiley & Sons, 1981
 Buku Teks
Drooyan, Irving
Elementary algebra for college students
John Wiley & Sons, 1976
 Buku Teks