Bush, Vincent G.
Pustaka Binaman Pressindo, 1983
Buku Teks
Reiner, Laurence E., author
Prentice-Hall, 1972
Buku Referensi
Volpe, Sonnino Peter, 1917-, author
Wiley-Interscience, 1972
Buku Teks
Lucas, Chester L.
McGraw-Hill, 1986
Buku Teks
Halpin, Daniel W., author
John Wiley & Sons, 1980
Buku Teks