George, F.H.
Gordon and Breach Science, 1986
Buku Teks SO
Winston, Patrick Henry
Addison-Wesley, 1993
Buku Teks
Andrew, A.M.
Abacus Press, 1983
Buku Teks
Rich, Elaine
McGraw-Hill, 1983
Buku Teks
Winston, Patrick Henry
Addison-Wesley Publishing Comp., 1984
Buku Teks