Pillai, C., & Naidu, C. (1997). Economics of distance education: The IGNOU experience. Indira Gandhi National Open Unoiversity.
Čikaški stil citiranjaPillai, CR, i CG Naidu. Economics of Distance Education: The IGNOU Experience. New Delhi: Indira Gandhi National Open Unoiversity, 1997.
MLA način citiranjaPillai, CR, i CG Naidu. Economics of Distance Education: The IGNOU Experience. Indira Gandhi National Open Unoiversity, 1997.
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