Mckie, Ronald
William Collins, 1974
Buku Teks SO
Needham, Jake
Chameleon, 2002
Buku Teks SO
Cisneros, Sandra
Vintage Contemporaries, 1991
Buku Teks SO
Nuniek Novia Chandra
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2007
UI - Tesis Membership
Astley, Thea
Penguin Books, 1989
Buku Teks SO