美國工作簽證 2019關於「PERM 簽證」標籤，搜尋引擎有相關的訊息討論：
PERM 勞工證申請tw.wegreened.com › perm-labor-certificationPERM勞工証(申請綠卡用的) - Kylie Huang Lawwww.kyliehuanglaw.com › perm-labor-certificate簽證- 駐新加坡台北代表處Taipei Representative Office in the ...www.roc-taiwan.org › postEmployment-Based Immigration: Third Preference EB-3 | USCISwww.uscis.