published by Damascus University in 1999 in Dentistry and research's language is العربية Download

Abd Al-Hadi L: Prevalence of temporomadibular disorders in relation to some occlusal parameters , J. Prosthet. Dent.; 70:345 - 49. 1993

Alison P. Howat , Nicholas J. capp , N. vincent J. Barrett: Acolor Atlas of occlusion and Malocclusion ,. Wolf publishing ltd. , p: 219. 1991

Ash M.A. ,Ramfjord S.: Occlusion 4th ed., W. B. Saunders Co.; p:445 - 456, 1995