Ashabranner, Brent K.
A first course in college english / Brent K. Ashabranner, D. Judson Milburn, Cecil B. Williams
Hougton Mifflin Company, 1961
 Buku Teks
Fraleigh, John B.
A first course in abstract algebra/John B. Fraleigh
Addison-Wesley, 1998
 Buku Teks
Fraleigh, John B.
A first course in abstract algebra / John B. Fraleigh
Addison-Wesley Publishing Co., 1994
 Buku Teks
Allsop, Jake
English for Cambridge first certificate: a new course / by Jake Allsop
Cassell, 1981
 Buku Teks
Bruce, Kenneth C.
Corrective English speech course for South-East Asia / K. C. Bruce
Longman, 1966
 Buku Teks