Gaya APA
GAGNE, R, M. (1985).
The conditions of learning and theory of instruction (4th ed.).
New York:
Holt, Rinehart and WInston.
Gaya MLA
GAGNE, Robert, M..
"The conditions of learning and theory of instruction".
4th ed.
New York:
Holt, Rinehart and WInston,
1985.
Buku.