ตระการพฤกษ์ ว., and สุกแก้ว ช. “NANOSIZE NiO/MgO/ZrO2 COMPOSITES PREPARED BY CITRIC ACID/ETHYLENE GLYCOL METHOD”. Srinakharinwirot University Journal of Sciences and Technology, vol. 1, no. 2, July-December, Mar. 2015, pp. 102-10, https://ph02.tci-thaijo.org/index.php/swujournal/article/view/32011.