(3fXGe GdMce GdeMdj aj ESQGFjd (B/s - (3UHMj eMQes ((3GdbGgQI (B:s (3LGeYI GdOhd GdYQHjI (B- (3GdefXeI GdYQHjI ddYdhe GdEOGQjI, eQcR GdHMhK GdEOGQjI,s, 1971)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3HHdjhLQGajG (B: (3UaMI (B52s
(3GdfU HGddZI GdYQHjI eJQLe ef GdGfLdjRjIs
Keywords: (3GdMce GdeMdjs; (3GdEOGQI GdeMdjIs; (3GdbGfhf GdEOGQjs; (3ESQGFjd s