STEVEN GUNAWAN; AGOES TINUS LIS INDRIANTO. “WORD OF MOUTH” IN ONLINE MARKETING COMMUNICATION TO IMPROVE SALES FOR THE HOSPITALITY BUSINESS INDUSTRY THROUGH PERSONAL ENGAGEMENT. Jurnal Cahaya Mandalika ISSN 2721-4796 (online), v. 4, n. 3, p. 1100-1114, 24 Aug. 2023.