Gaya APA
M.D. Gall,dkk. (2010).
Applying educational Research .
Boston:
Pearson Educartion.
Gaya Chicago
M.D. Gall,dkk.
Applying educational Research.
Boston:
Pearson Educartion,
2010.
Buku.
Gaya MLA
M.D. Gall,dkk.
Applying educational Research.
Boston:
Pearson Educartion,
2010.
Buku.
Gaya Turabian
M.D. Gall,dkk.
Applying educational Research.
Boston:
Pearson Educartion,
2010.
Buku.