A programed course in calculus : V infinite sequences and series
by Howard W. Alexander... [et.al.]
W.A. Benjamin, 1968
 Buku Teks SO
Ashbacher, Charles
Smarandache sequences, stereograms and series
Hexis, 2005
 Buku Teks SO
Blumenthal, Joseph C.
English 3200 : a programed course in grammar and usage
Harcourt Brace Jovanovich, 1972
 Buku Teks SO
Experimental entomology / Kenneth W. Cummins ...[et al.]
Rinehold, 1965
 Buku Teks SO
Harder, Paul O.
Basic materials in music theory a programed course/Paul O. Harder
Allyn and Bacon, 1975
 Buku Teks SO