بقلم دكتور اشرف شوقي
http://i75.servimg.com/u/f75/11/65/93/22/pictur18.png
http://i75.servimg.com/u/f75/11/65/93/22/pictur19.png
http://i75.servimg.com/u/f75/11/65/93/22/pictur23.jpg
http://i75.servimg.com/u/f75/11/65/93/22/pictur24.jpg
صورة للثلاث بيئات
http://i17.servimg.com/u/f17/11/65/93/22/dscf3614.jpg
http://i13.servimg.com/u/f13/11/65/93/22/resize10.jpg
