Gaya APA
SLAVIN, R, E.
(1991).
Educational psychology:
(
3rd.ed.)
.
Englewood Cliffs, N.J.:
Prentice Hall.
Gaya MLA
SLAVIN, Robert, E..
"Educational psychology:".
3rd.ed.
Englewood Cliffs, N.J.:
Prentice Hall,
1991.
Buku.