Strang, Gilbert
Wellesley Cambridge Press, 1986
Buku Referensi
Anton, Howard
Academic Press, 1982
Buku Teks SO
Hildebrand, Francis Begnaud
Prentice-Hall, 1968
Buku Teks SO
Al-Moajil, Abdullah H.
Saudi Arabia University of Petroleum and Minerals, 1981
Buku Teks SO
Wylie, C. Ray
McGraw-Hill, 1982
Buku Teks SO