2007 Micro #3 Scoring Rubric:  https://secure-media.collegeboard.org/apc/_ap07_microeconomics_sgs_final.pdf
2009 Micro #3 Scoring Rubric:  https://secure-media.collegeboard.org/apc/ap09_microecon_sgs.pdf
2013 Micro #2 Scoring Rubric:  https://secure-media.collegeboard.org/digitalServices/pdf/ap/apcentral/ap13_microeconomics_scoring_guidelines.pdf
2015 Micro #2 Scoring Rubric:  https://secure-media.collegeboard.org/digitalServices/pdf/ap/ap15_microeconomics_sg.pdf
Scoring Guidelines
Unit 4:  Oligopoly FRQs