Hannan, Bill
George Allen and Unwin, 1985
Buku Teks
edited by T.E. Hall, P.R. Jones, G.B. Preston
Academic Press, 1980
Buku Teks
Edey, Harold C.
Garland Publishing , 1982
Buku Teks
Hayes, James L., author
Amacom , 1983
Buku Teks
Arif Gosita, author
Akademika Pressindo, 1987
Buku Teks