????~ ?????????/???????/??????? ??????/????/??? ?????/??????/???? ???????? ??????/??????/??? ?? ????????/??????????/???????????. ???/???/????? ???/????/?????? ???? ????/???/???? ?????/???????/??????????? ???/???????/????? ??????????/???????/?????? . ??????/??????/??????? ????/???/?????????? ??/??/?????? ???/???/?? ??????/???/?????? ??? ???/???/????
5 สิ่งจำเป็น ที่ควร รู้ เกี่ยวกับ การรับรอง
??? ???? ????????? ???? ????????? ?? ????? ???????????????? . ?????? ????????????? ??? ??????, ??? {??????? 5 ????? ??????? {??? ?????????? ???? ????????????????????????????. ?????????????????? ??? ?????????? ?????????????????? ????????? ??????????????????? ????? ???? ????????? {???????? ???????????????????? ?????? ?????????? ??????????????