(3OjhGf Thbi (B: (3JhKjb hJHhjH hTQM hJYbjH (B/s - (3GMeO eMeO GdMhais ((3GdbGgQI (B: s (3fgVI eUQ ddWHGYI hGdfTQ hGdJhRjY , s, 1981)
Keywords: (3GdTYQ GdZRdis; (3GdTYQGA GdYQHs; (3GdTYQ GdYQHi (B- (3JGQjN hfbOs; (3GHf NdOhfs; (3GdTYQ GdLGgdi (B- (3JGQjN hfbOs; (3GdTYQ GdYQHi (B- (3JGQjN hfbO (B- (3GdYUQ GdLGgdis