Rai, P., C. . Anunmana, and P. . Sinavarat. “The Relative Translucency and Fracture Toughness of Different Zirconia Ceramics”. Mahidol Dental Journal, vol. 40, no. 1, Apr. 2020, pp. 52-60, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/239915.