تعريف الانعكاس. قانون الانكسار

Eric Weinstein's World of Scientific Biography
Vasari, Giorgio 18 December 2007	Kennick, William ed, [] and W

التصريع في الشعر

Kennick, Art and philosophy: readings in aesthetics New York: St.

طرق انتقال الطاقة: "A pioneer in anaclastics: Ibn Sahl on burning mirrors and lenses"
طرق انتقال الطاقة: Clowney, David 21 December 2008
قانون الانكسار: 1995 , "Geometry and dynamics in refracting systems", European Journal of Physics 16: 14—20

1981 , Theories of Light from Descartes to Newton,