Gaya APA
Educational System Planning. (sa).
USA:
Prentice Hall.
Gaya Chicago
Educational System Planning.
.
USA:
Prentice Hall,
sa.
Buku.
Gaya MLA
Educational System Planning.
.
USA:
Prentice Hall,
sa.
Buku.
Gaya Turabian
Educational System Planning.
USA:
Prentice Hall,
sa.
Buku.