Gaya APA
Horton, William. (2011).
E-learning by design .
United Stated of Amerika:
Pfeiffer.
Gaya Chicago
Horton, William.
E-learning by design.
United Stated of Amerika:
Pfeiffer,
2011.
Text.
Gaya MLA
Horton, William.
E-learning by design.
United Stated of Amerika:
Pfeiffer,
2011.
Text.
Gaya Turabian
Horton, William.
E-learning by design.
United Stated of Amerika:
Pfeiffer,
2011.
Print.