Leffler, John E.
Macmillan, 1973
Buku Teks
edited by Jim Browne
North Holland, 1989
Buku Teks
Buffa, Elwood S. (Elwood Spencer), author
Erlangga, 1984
Buku Teks
Pakin, Sandra, author
Prentice-Hall, 1973
Buku Teks
Coico, Richard, author
Wiley Blackwell, 2015
Buku Teks