Priyo Das. INCREASING THE EFFICIENCY OF SOCIAL MARKETING ABOUT COVID-19 PREVENTIVE MEASURES- AN EMPIRICAL STUDY. International Journal on Recent Trends in Business and Tourism [Internet]. 2021Jan.1 [cited 2024Apr.26];6(1):1-14. Available from: https://ejournal.lucp.net/index.php/ijrtbt/article/view/1483