edited by Maggie Toy
Academy Group, 1997
Buku Teks
gues-edited by Neil Spiller
Academy Editions, 1998
Buku Teks
editors, Robert Joyce, Rossiana Santos and Laura Turlington
MIT Press, 1997
Buku Teks
Robinson, Jeremy
New York: McGraw-Hill, 1979
Buku Teks
Strom, Steven, author
Van Nostrand Reindhold, 1993
Buku Teks