• TOEFL – https://www.ets.org/toefl
• IELTS – https://www.ielts.org/en-us
• SAT – https://www.collegeboard.org/
• SAT Subject – https://collegereadiness.collegeboard.org/sat-subject-tests
• ACT – http://www.act.org/
• GRE – https://www.ets.org/gre
• GRE Subject – https://www.ets.org/gre/subject/about
• GMAT – https://www.mba.com/us