A 12/6/11 Congressional Research Service (CRS) report on analyzing the numerical limits of employment-based immigration by country.
https://brian-d-lerner-blog.com/tag/employment-based-immigration/
https://brian-d-lerner-blog.com/tag/employment-based-immigration-attorney/
https://brian-d-lerner-blog.com/tag/employment-based-interviews/
https://californiaimmigration.us/family-and-employment-based-applicants-on-the-rise/