(3GdEOGQI GeMdjI hGdMce aj YgO GdKhQI YdeG hYedG aj (B15 (3SfI (B/s - (3NGdO YHO GdMejO aQGLs ([(3ecGf GdfTQ ZjQ eMOO(B] :s (3OGQ GdeYGQa,s, 1967)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdEOGQjs; (3GdMce GdeMdjs