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5 ข้อควรรู้ เกี่ยวกับ การรับรอง
??? ????? ?????? ???? ????????? ?? ????? ???????????????? . ?????? ??????? ??? ??????, ??? {??????????? 5 ????? ??????? {??? ??????????? ???? ?????????????????? ?????????. ???????? ??????????????? ????????? ????????? ????? ???? ????????? {???????? ?????????????? ?????? ???????????? ??????????????? ?????? ?????????? ?? ?????? ???????????????