Consumers of a Associations of Penang, 1986
Buku Teks SO
James, Henry, 1843-1916
Random House , 1997
Buku Referensi
Andrews, V.C.
Pocket Books, 2003
Buku Teks SO
Kidd, Sue Monk
Tinder Press, 2014
Buku Teks SO
Heathcote, Edwin
Academy Editions, 1997
Buku Teks SO