Shere, Waris
Prentice-Hall, 1969
Buku Teks
Anton, Howard, author
Academic Press, 1982
Buku Teks
Hildebrand, Francis Begnaud, author
Prentice-Hall, 1968
Buku Teks
Strang, Gilbert, author
Wellesley Cambridge Press, 1986
Buku Referensi
Al-Moajil, Abdullah H.
Saudi Arabia University of Petroleum and Minerals, 1981
Buku Teks