(3QMdI Gdi SGMd GdHMQ GdGMeQ hHYV efGWb GdGKGQ HGdhLg GdbHdi (B/ s - (3cdjI GdGOGH LGeYI GdbGgQIs ([S.N] : (3cdjI GdGOGH LGeYI GdbGgQI , s, 1939)
Keywords: (3eUQs; (3JGQjNs; (3GdGKGQ GdGSdGejIs; (3GdGKGQ GdaQYhfjIs