JINDAL, L. C., and S. A. MOID. “A CLIMATOLOGICAL STUDY OF VISIBILITY AND RUNWAY VISUAL RANGE OVER IGI AIRPORT NEW DELHI”. MAUSAM 52, no. 2 (April 1, 2001): 431–433. Accessed October 5, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/1712.