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Lua i Stíl Chicago (17ú heag.)Rathakrishnan, L- ed. Innovation and Cometitiveness of Small & Medium Enterprises. Delhi: Kalpaz, 2010.
Lua MLA (9ú heag.)Rathakrishnan, L- ed. Innovation and Cometitiveness of Small & Medium Enterprises. Kalpaz, 2010.
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