Froberg, Carl-Erik
Addison-Wesley, 1972
Buku Teks
Atkinson, Kendall E.
John Wiley & Sons, 2001
Buku Teks
Hildebrand, Francis Begnaud
Tata McGraw-Hill, 1974
Buku Teks
Stoer, Josef
Springer-Verlag, 1993
Buku Teks
Atkinson, Kendall E.
John Wiley & Sons, 1978
Buku Teks