Wannasut, Pimpilai -. 2018. “Microstructural and Compositional Analyses of Segmented YBa2Cu3O7-X NayCoO2 Oxide Thermoelectric Ceramic Prepared by Hot-Pressing Method”. Creative Science 10 (2):130-37. https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/105962.