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