https://luatmeta.com/laws/lenh-06-l-ctn-ve-viec-cong-bo-phap-lenh-sua-doi-mot-so-dieu-cua-phap-lenh-thue-thu-nhap-do-lgtvk4eqk2m1999-07-06https://luatmeta.com/en/laws/lenh-06-l-ctn-ve-viec-cong-bo-phap-lenh-sua-doi-mot-so-dieu-cua-phap-lenh-thue-thu-nhap-do-lgtvk4eqk2m1999-07-06