Van Bone, Kevia Jemima, Debby D. V. Kawengian, and Edmon Kalesaran. 2018. “STRATEGI KOMUNIKASI PEMASARAN AGEN PERJALANAN EMERALL TOURS and TRAVEL MANADO”. ACTA DIURNA KOMUNIKASI 7 (4). https://ejournal.unsrat.ac.id/v3/index.php/actadiurnakomunikasi/article/view/20969.