00579nam a2200169Ia 4500008004100000100001600041245008900057245003400146260005900180260000900239300001000248650001800258650001500276856002600291999001900317952007300336170221s9999 xx 000 0 und d aWeiwu Zhang 4aThe Effects of Internet Use and Internet Efficacy on Offline and Online Engagement  cWeiwu Zhang, Sherice Gearhart bOnline Journal of Communication and Media Technologies c2012 aX : 1 xCommunication xMedia Arts uhttp://www.ojcmt.net/ c309023d309023 001040aCLbCLd2017-02-21l0r2017-02-21 00:00:00w2017-02-21yFOJ