(3GdYGQ GdUgjhfi ai eUGOQ GdUgjhfjI hGYeGdgG GdJNQjHjI ai GdYGde (B((3gOjI ef GdGOjH YHOGdaJGM GdLed(B) / s - (3GMeO QVG eMeO QVGs; (3YRGdOjf ahOI (B((3JbOje(B)s; (3OheGQS, dhSjGf cGaQhs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1972)
Keywords: (3GdUgjhfjIs; (3GdOYGjI GdUgjhfjIs; (3GSQGFjd (B- (3JGQjNs