Gaya APA
Johnson, Donna M.. (1991).
Approaches to research in second language learning .
Jakarta:
Longman.
Gaya Chicago
Johnson, Donna M..
Approaches to research in second language learning.
Jakarta:
Longman,
1991.
Text.
Gaya MLA
Johnson, Donna M..
Approaches to research in second language learning.
Jakarta:
Longman,
1991.
Text.
Gaya Turabian
Johnson, Donna M..
Approaches to research in second language learning.
Jakarta:
Longman,
1991.
Print.