Gillespie, John Thomas, 1928-, author
Libraries Unlimited, 1998
Buku Teks
compiled by Herman C. Kemp
KITLV Press, 1998
Buku Referensi
Stead, Christina
Angus and Robertson Publishers, 1987
Buku Teks
University of Queensland, 1970
Buku Teks
Singleton, Andrew, author
SAGE, 2014
Buku Teks