Suwanwong, S., and A. Hutem. “EFFICIENCY OF CAPACITOR IN CCTO CERAMICS WITH ACTIVATED CARBON DERIVED FROM TAMARIND FRUIT SHELLS”. PSRU Journal of Science and Technology, vol. 6, no. 2, Aug. 2021, pp. 1-12, https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/243881.