1。美国移民局网址(USCIS),直接下载I-131表格和I-131 Filing Instruction.
http://www.uscis.gov/portal/site/uscis/menuitem.eb1d4c2a3e5b9ac89243c6a7543f6d1a/?vgnextoid=db029c7755cb9010VgnVCM10000045f3d6a1RCRD&vgnextchannel=db029c7755cb9010VgnVCM10000045f3d6a1RCRD
2。文学城pjiang老师的博客文章:闲话 AP (I-131) 和 EAD (I-765)
http://blog.wenxuecity.com/blogview.php?date=200706&postID=42162