Capitulo, Florante M.
Mathematics of investment : a simplified approach
National Book Store, 1994
Buku Teks SO
Novak, David
Developmental mathematics
D.C. Health , 1989
Buku Teks
Hirst, D.M.
Mathematics for chemists
Macmillan, 1976
Buku Teks
Armstrong, James W.
Elements of mathematics
Macmillan, 1976
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Campbell, Hugh G.
Finite mathematics
Macmillan, 1974
Buku Teks