(3GdPFGH GdLGFYI (B/ s - (3eMehO GdHOhis ([S.N] : (3GdgjFI GdbhejI ddHMK GdYdei , s, 1986)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs; (3GdeLehYGJs