Chantranikul, Natravee, and Prarom Salimee. 2014. “Biaxial Flexural Strength of Zirconia-Based Ceramic Core With Veneering Porcelain from Various Manufacturers”. Srinakharinwirot University Dental Journal (E-ISSN 2774-0811) 7 (Suppl). Bangkok, Thailand:51-57. https://ejournals.swu.ac.th/index.php/swudentj/article/view/4615.