Howard, Jonathan
Pustaka Utama Grafiti, 1994
Buku Teks
Marshall, Jock
Hodder and Stoughton, 1970
Buku Teks
Miller, Jonathan
Mizan, 2000
Buku Referensi
Carroll, Joseph
Oxford University Press, 2016
eBooks
New York : W.W. Norton & Company, 1970.
Buku Teks