Gaya APA
Cohen, Louis, Manion, Lawrence. (1980).
Research methods in education .
London:
Croom Helm.
Gaya Chicago
Cohen, Louis, Manion, Lawrence.
Research methods in education.
London:
Croom Helm,
1980.
Text.
Gaya MLA
Cohen, Louis, Manion, Lawrence.
Research methods in education.
London:
Croom Helm,
1980.
Text.
Gaya Turabian
Cohen, Louis, Manion, Lawrence.
Research methods in education.
London:
Croom Helm,
1980.
Print.