Rao, U.V. Gopala, R.C. Bhatia, and N.P. Jauhari. “A Solid State Amplifier for Recording APT Cloud Pictures”. MAUSAM 30, no. 1 (January 1, 1979): 157–158. Accessed November 22, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/2998.