Boguslavsky, B.L.
Peace Publisher, [Date of publication not identified]
Buku Teks SO
Kuo, Benjamin Chung-i, 1930-
Prentice-Hall, 1987
Buku Teks SO
Grefenstette, Gregory
Kluwer Academic, 1994
Buku Referensi
Birch, Thomas
Pearson Education, 2006
Multimedia
Stover, Allan C.
McGraw-Hill, 1984
Buku Teks