editor in chief Richard Cavendish
New York Marshall Cavendish 1983
Buku Referensi
editor, Linda A. Bennett
New York G.K. Hall [and] Company 1991-1996
Buku Referensi
New York Garland 2000
Buku Referensi
Backman, Louise
Stockholm Almqvist & Wiksell International 1975
Buku Teks
Depok FSUI 1991
UI - Makalah dan Kertas Kerja