Myers, Glenford J., author
Van Nostrand Reinhold , 1975
Buku Teks
Kain, Richard Y., author
Prentice-Hall, 1989
Buku Teks
c. 1987
Buku Referensi
Kain, Richard Y., author
Prentice-Hall, 1989
Buku Teks
Dettmana, Terry
Que Corporations, 1993
Buku Referensi