??? ??????? ?????????? ???? ??? pglsa ??????? , ????????? ???????? ?? ???????????????? ??????? ?????? ????? ???????? ???? ??? ???? ?????? ??? pglsa ??????? ??? ???????? pg????? : ?????????????????? ???? ?????????? ????????????? pglisa ????? ?????????????????? ?????? ????? ??????????????? ??????? ??????? ??? ????? ??? ??????