(3JYQjH GdfbhO hGdOhGhjf ai GdYUQ GdGehi(B((3GdMjGI GdeGdjIhGdGbJUGOjIhGdGOGQjI(B) / s - (3MSGf Ydi MdGbs ([S.N] : (3OGQ GdfgVI GdYQHjI , s, 1986)
Keywords: (3GdGSdGe hGdMVGQIs; (3GdfbhOs; (3GdMVGQI GdGSdGejIs