Gaya APA
Stren, H. (1991).
Fundamental Concepts of Language Theaching / H.H Stren.. (Ed. 7).
New York:
Oxford University Press.
Gaya MLA
Stren, H.H..
"Fundamental Concepts of Language Theaching / H.H Stren..".
Ed. 7
New York:
Oxford University Press,
1991.
Text.