McCormac, Jack C., author
Harper and Row , 1981
Buku Teks
Ryan Ramadani, author
2018
UI - Skripsi (Membership)
Schumacker, Randall E, author
Routledge, 2016
Buku Teks
Pujo Aji, author
ITS Press, 2011
Buku Teks
Lothers, John E.
Prentice-Hall, 1965
Buku Teks