منبع: https://www.wegreened.com/blog/niw/success-stories-our-expert-team-achieved-niw-approval-for-a-phd-sc،lar-in-the-field-of-ecosystem-science-in-just-13-days-with-the-help-of-premium-processing-service-upgrade/
دستهها
منبع: https://www.wegreened.com/blog/niw/success-stories-our-expert-team-achieved-niw-approval-for-a-phd-sc،lar-in-the-field-of-ecosystem-science-in-just-13-days-with-the-help-of-premium-processing-service-upgrade/