Mahajan, Sandeep, O.P. Thakur, and Chandra Prakash. “Effect of Sintering Temperature on Structural and PiezoelectricProperties of PNN-PZT Ceramics”. Defence Science Journal 57, no. 1 (January 1, 2007): 23-28. Accessed January 28, 2022. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1724.