Hildebrand, Francis Begnaud, author
Prentice-Hall, 1968
Buku Teks
Anton, Howard, author
Academic Press, 1982
Buku Teks
Strang, Gilbert, author
Wellesley Cambridge Press, 1986
Buku Referensi
edited by Carl E. Pearson
Van Nostrand Reinhold Co., 1974
Buku Referensi
Logan, J. David (John David), author
Wiley, 2013
Buku Teks