Gaya APA
Brown, H, D. (1994).
Teaching by principles : an interactive approach to language pedagogy .
Englewood Cliffs, New Jersey:
Prentice Hall.
Gaya MLA
Brown, H., Douglas.
"Teaching by principles : an interactive approach to language pedagogy".
Englewood Cliffs, New Jersey:
Prentice Hall,
1994.
BUKU.