Kokoska, Stephen
Springer-Verlag, 1989
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1999
Buku Teks
Burington, Richard Stevens, author
McGraw-Hill, 1973
Buku Referensi
Spiegel, Murray R., author
McGraw-Hill , 2012
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1968
Buku Referensi