Srecko JoksimovicDragan GasevicVitomir KovanovicBernhard E. RieckeMarek HatalaSocial presence in online discussions as a process predictor of academic performance.638-654201531J. Comput. Assist. Learn.6https://doi.org/10.1111/jcal.12107https://www.wikidata.org/entity/Q57696298db/journals/jcal/jcal31.html#JoksimovicGKRH15