SIVARAMAKRISHNAN, M. V., and M. MARY SELVAM. “Measurement of the Two Components of Air Earth Conduction Current in the Tropics”. MAUSAM 22, no. 4 (October 1, 1971): 499–524. Accessed September 20, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/4965.