Gaya APA
Lie, A., Novita, D. (2010).
Cooperative learning: mempraktikkan cooperatice learning di ruang-ruang kelas .
Jakarta:
Grasindo.
Gaya MLA
Lie, Anita., Novita, Diane.
"Cooperative learning: mempraktikkan cooperatice learning di ruang-ruang kelas".
Jakarta:
Grasindo,
2010.
Text.