Hartati, S. and Arisandi, D. 2017. THE ROLE OF INSTANT MESSANGING ON THE EFFECTIVENESS OF LECTURER’S PERFORMANCE AT THE UNIVERSITAS ABDURRAB. PEOPLE: International Journal of Social Sciences. 3, 3 (Dec. 2017), 319–326. DOI:https://doi.org/10.20319/pijss.2017.33.319326.