(3efTGJ GdGYeGd GdUZjQI (B: (3GJLGgGJ ai GdGbJUGO Gdcdi (B/ s - (3UdjH HWQS (B((3eJQLe(B)s; (3gd(B, (3LGdf SHfSQs ([S.N] : (3GdOGQ GdOhdjI ddfTQ hGdJhRjY , s, 1989)
Keywords: (3GdGbJUGO Gdcdis; (3GdJLGQIs; (3JfXje hGOGQIs; (3GdJShjbs; (3GdJfejI GdGbJUGOjIs; (3GdeTQhYGJs