„Oligopoly/Duopoly and Game Theory”. AP Microeconomics Review. 2017. Архивирано из оригинала 2016-06-25. г. Приступљено 2017-06-11. „Game theory is the main way economists [sic] understands the behavior of firms within this market structure.”
Emerson, Patrick M. (2019-10-28), „Module 8: Cost Curves”, Intermediate Microeconomics (на језику: енглески), Oregon State University, Приступљено 2021-05-13
„Oligopoly/Duopoly and Game Theory”. AP Microeconomics Review. 2017. Архивирано из оригинала 2016-06-25. г. Приступљено 2017-06-11. „Game theory is the main way economists [sic] understands the behavior of firms within this market structure.”