THE SUSTANABLE MARKETING IMMUNITY OF TOURIST OF BUSINESS IN LIGHT OF THE PANDEMIC-CORONA (COVID-19) AN APPLIED RESEARCH IN TRAVEL AND TOURISM COMPANIES IN BAGHDAD: THE SUSTANABLE MARKETING IMMUNITY OF TOURIST OF BUSINESS IN LIGHT OF THE PANDEMIC-CORONA (COVID-19) AN APPLIED RESEARCH IN TRAVEL AND TOURISM COMPANIES IN BAGHDAD. (2021). Iraqi Journal of Market Research and Consumer Protection, 13(2), 173-191. https://jmracpc.uobaghdad.edu.iq/index.php/IJMRCP/article/view/261