Gaya APA
Horton, William. (2006).
E-learning by design .
San Francisco:
Pfeiffer.
Gaya Chicago
Horton, William.
E-learning by design.
San Francisco:
Pfeiffer,
2006.
Text.
Gaya MLA
Horton, William.
E-learning by design.
San Francisco:
Pfeiffer,
2006.
Text.
Gaya Turabian
Horton, William.
E-learning by design.
San Francisco:
Pfeiffer,
2006.
Print.