by Member of the Summer Institute of Linguistics
University of Sydney, 1958
Buku Teks SO
Kim-Renaud, Young-Key
Hanshin Pubshing Company, 1987
Buku Teks SO
Goodrich, Peter, editor
Macmillan, 1987
Buku Teks
edited by Karin Aijmer & Bengt Altenberg
Longman, 1991
Buku Teks SO
Post-Graduate Centre, 1975
Buku Teks SO