Dr. Parul Rana. “A STUDY OF TERRITORIAL EXPANSION OF CLASS-I CITIES OF NATIONAL CAPITAL REGION-HARYANA”. INTERNATIONAL JOURNAL OF SOCIAL SCIENCE & INTERDISCIPLINARY RESEARCH ISSN: 2277-3630 Impact Factor: 8.036, vol. 10, no. 7, Apr. 2024, pp. 46-58, https://gejournal.net/index.php/IJSSIR/article/view/2358.