Watcharatpong, T., P. Krongsut, and B. Wanthanachaisaeng. “APPLICATION OF SILICON CARBIDE CRUCIBLE FOR GEMSTONE HEAT TREATMENT IN MICROWAVE OVEN”. Research Journal Phranakhon Rajabhat : Science and Technology, vol. 16, no. 2, June 2021, pp. 122-3, https://li01.tci-thaijo.org/index.php/PRRJ_Scitech/article/view/249468.