edited by Tom Sorell
Routledge, 1998
Buku Teks
Harold W. Baillie, John McGeehan, Thomas M. Garrett, Rosellen M. Garrett
Pearson, 2013
Buku Teks
Hall, George M.
Warren H. Green, 1992
Buku Teks
Garrett, Thomas M.
Prentice-Hall, 2001
Buku Teks
Editor: Souzy Dracopoulou
Routledge, 1998
Buku Teks