Jordan, G. (2005). Principles of economics: A beginner's guide. Alternate Forum for Research in Mindanao (AFRIM).
Lua i Stíl Chicago (17ú heag.)Jordan, Georgina. Principles of Economics: A Beginner's Guide. Davao City: Alternate Forum for Research in Mindanao (AFRIM), 2005.
Lua MLA (9ú heag.)Jordan, Georgina. Principles of Economics: A Beginner's Guide. Alternate Forum for Research in Mindanao (AFRIM), 2005.
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