Supreya Trivijitkasem, and Krit Koyvanich. “Characterization of Lead Lanthanum Zirconate Titanate (PLZT) Ceramics Sintered at Various Temperatures”. Agriculture and Natural Resources, vol. 41, no. 5, Dec. 2007, pp. 192-7, https://li01.tci-thaijo.org/index.php/anres/article/view/244367.