CHACKO, O, V KRISHNAMURTHY, and V DESIKAN. “Global Solar Radiation Flux Measurements over India During the IQSY”. MAUSAM 19, no. 1 (January 1, 1968): 89–92. Accessed September 19, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/5223.