(3GdNeQ h GdeNOQGJ aj GdTQjYI GdGSdGejI (B/s (3GdbSe GdKGfj(B. s - (3eMeO YHOGdLhGO eMeO s; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI ,s, 1974)
(3jTJed Ydj eQGLYs
Keywords: (3GdGYJjGO hGdGOeGfs; (3GdGHGMIs; (3GdfHjPs; (3GdNeQs; (3GdeNOQGJ s