Salmiah Alias
Ameen Kreatif, 2011
Buku Teks
Eckbo, Garrett
McGraw-Hill, 1969
Buku Teks
Teh, Lydia
MPH Group Publishing Sdn Bhd, 2007
Buku Teks
Gorton, Gary B.
Oxford University Press, 2012
Buku Teks
edited by Joanna Household
Webb & Bower, 1983
Buku Referensi