Jordan, G. (2005). Principles of economics: A beginner's guide. Alternate Forum for Research in Mindanao, Inc. (AFRIM).
Chicago-referens (17:e uppl.)Jordan, Georgina. Principles of Economics: A Beginner's Guide. Davao City: Alternate Forum for Research in Mindanao, Inc. (AFRIM), 2005.
MLA-referens (9:e uppl.)Jordan, Georgina. Principles of Economics: A Beginner's Guide. Alternate Forum for Research in Mindanao, Inc. (AFRIM), 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.