Urapepon, S., and D. Wiriyapak. “Effect of Resin Infusion on Fracture Toughness of Dental Veneering Ceramic”. Mahidol Dental Journal, vol. 37, no. 1, Dec. 2016, pp. 1-6, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/179963.