shalini kanagasingam, mohd haizal hussaini, eason soo, safura anita baharin, nor atika ashar, shanon patel.  (2017).  accuracy of single and parallax film and digital periapical radiographs in diagnosing apical periodontitis - a cadaver study.  - international endodontic journal.  427-436. 

jww chang, irwan soo and gary s.p. cheung.  (2012).  evaluation of fiber post-supported restorations under simulated occlusal loading.  - journal of prosthetic dentistry.  108(3):158-164.