Atta Elahi, et al. “EFFECT OF PREPOLYMERIZED ZIRCONIUM REINFORCED COMPOSITE RESIN DOUBLE MEGA INSERTS ON THE MARGINAL ADAPTATION OF RESIN BASED COMPOSITE RESTORATIONS”. Pakistan Oral & Dental Journal, vol. 39, no. 4, Jan. 2020, pp. 386-9, https://podj.com.pk/index.php/podj/article/view/500.