Dr. Ashima Ghosh. “A STUDY ON CHALLENGES BEFORE UNITED NATIONS”. INTERNATIONAL JOURNAL OF SOCIAL SCIENCE & INTERDISCIPLINARY RESEARCH ISSN: 2277-3630 Impact Factor: 8.036, vol. 10, no. 2, Feb. 2021, pp. 1-9, https://www.gejournal.net/index.php/IJSSIR/article/view/895.