Githii, John. “EFFECT OF COVID 19 ON THE PERFORMANCE OF TOURISM INDUSTRY.A CRITICAL LITERATURE REVIEW”. International Journal of Modern Hospitality and Tourism 1, no. 1 (September 5, 2021): 16 – 28. Accessed May 3, 2024. https://www.iprjb.org/journals/index.php/IJMHT/article/view/1361.