Gaya APA
GAGE, N., BERLINER, D, C.
(1984).
Educational psychology
(
3rd ed.)
.
Boston:
Houghton Mifflin Company.
Gaya MLA
GAGE, N.L.., BERLINER, David, C..
"Educational psychology".
3rd ed.
Boston:
Houghton Mifflin Company,
1984.
Buku.