Avatars, Pedagogical Agents, And Virtual Environments: Social Learning Systems Online
2009 ◽
Vol 5
(4)
◽
pp. 1-13
◽
2013 ◽
Vol 22
(2)
◽
pp. 110-140
◽
2017 ◽
Vol 15
(3)
◽
pp. 391-399
◽
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