Utami Triwardani
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1995
UI - Skripsi Membership
Brown, Christy
Secker & Warburg, 1976
Buku Teks SO
Long, David
Scribner, 1997
Buku Teks SO
Rendell, Ruth
Hutchinson, 1999
Buku Teks SO
Swift, Jonathan
Wordsworth, 1992
Buku Teks