Gaya APA
Brown, H, D. (2001).
Teaching by principles : an interactives approach to langunage pedagogy ed.2 (Sastra Inggris).
Serang, Jawa Barat:
Prentice Hall.
Gaya MLA
Brown, H., Douglas.
"Teaching by principles : an interactives approach to langunage pedagogy ed.2".
Sastra Inggris
Serang, Jawa Barat:
Prentice Hall,
2001.
.