Christanti, Novia Celcilya, Desie M. D. Warouw, and Edmon Kalesaran. “PERANAN PUBLIC RELATIONS DALAM MENINGKATKAN KINERJA KARYAWAN DI PT. TIRTA INVESTAMA DANONE “AQUA” MANADO”. ACTA DIURNA KOMUNIKASI 4, no. 3 (April 16, 2015). Accessed May 15, 2024. https://ejournal.unsrat.ac.id/v3/index.php/actadiurnakomunikasi/article/view/7571.