Gaya APA
The ASTD E-Learning handbook. (2002).
New York:
McGraw Hill.
Gaya Chicago
The ASTD E-Learning handbook.
.
New York:
McGraw Hill,
2002.
Buku.
Gaya MLA
The ASTD E-Learning handbook.
.
New York:
McGraw Hill,
2002.
Buku.
Gaya Turabian
The ASTD E-Learning handbook.
New York:
McGraw Hill,
2002.
Buku.