Gaya APA
Orlich, D, C. et al (1990).
Teaching Strategies : A Guide To Better Instruction (Third Edition).
United State of America:
Simutaneously.
Gaya MLA
Orlich, Donald, C.. et al.
"Teaching Strategies : A Guide To Better Instruction".
Third Edition
United State of America:
Simutaneously,
1990.
Text.