“Synthesis & Characteristics of PPy - MgO –CuO Nanocomposite for CO2 Gas Sensors Applications”. International Journal of Scientific Research in Science and Technology 11, no. 2 (April 5, 2024): 446–453. Accessed August 10, 2025. https://ijsrst.com/index.php/home/article/view/IJSRST52411278.