Gaya APA
SLAVIN, R, E.
(2009).
Educational psychology :
(
9th ed.)
.
Englewood Cliffs, N.J.:
Prentice Hall.
Gaya MLA
SLAVIN, Robert, E..
"Educational psychology :".
9th ed.
Englewood Cliffs, N.J.:
Prentice Hall,
2009.
Buku.