Kent, Ernest W., author
Byte/McGraw-Hill, 1981
Buku Teks
O`Brien, James A., 1936-, author
Richard D. Iriwin, 1986
Buku Referensi
Loskutov, V
Peace Publishers, [n.d]
Buku Teks
Rosenberg, Jerry M., author
John Wiley & Sons, 1987
Buku Referensi
Casady, Mona J. author
South-Western Publishing, 1985
Buku Teks