(3fgQ GdGQOf hGdeDGeQI GdUgjhfjI (B/ s - (3Ydj, Ydj eMeO, s ([(3GdbGgQI, eUQ(B] : s (3GdOGQ GdbhejI ddWHGYI hGdfTQ, s, 1964)
(3jJVef edGMb(B.s
Keywords: (3fgQ GdGQOfs -- (3hVY Ohdj(B.s; (3GdfRGY GdYQHj GdGSQGFjdj(B.s