Gaya APA
Model of teaching. (1972).
New Jersey:
Prentice Hall.
Gaya Chicago
Model of teaching.
.
New Jersey:
Prentice Hall,
1972.
Buku.
Gaya MLA
Model of teaching.
.
New Jersey:
Prentice Hall,
1972.
Buku.
Gaya Turabian
Model of teaching.
New Jersey:
Prentice Hall,
1972.
Buku.