Angel, Edward, author
Pearson, 2015
Buku Teks
Khailany, Asad
Prentice-Hall, 1981
Buku Teks
McCracken, Daniel D., author
John Wiley & Sons, 1974
Buku Referensi
Nyoman Susila, author
Cipta Karsa, 1983
Buku Teks
Maratek, Samuel L., author
Academic Press, 1983
Buku Teks