Abokasem سحاب أسعد, and Sultan محمد زياد. “In Vitro Study to Evaluate the Effect of Saliva Contamination on Micro Leakage of Composite Versus One Kinds of Glass Lonomer”. University of Aden Journal of Natural and Applied Sciences 22, no. 1 (April 30, 2018): 61–74. Accessed November 21, 2024. https://uajnas.adenuniv.com/index.php/uajnas/article/view/158.