Daraban, Bogdan (2010-06-05). “Introducing the Circular Flow Diagram to Business Students”. Journal of Education for Business85 (5): 274–279. doi:10.1080/08832320903449527. ISSN0883-2323.
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Daraban, Bogdan (2010-06-05). “Introducing the Circular Flow Diagram to Business Students”. Journal of Education for Business85 (5): 274–279. doi:10.1080/08832320903449527. ISSN0883-2323.