Chaffey Dave. (2012). E - Business and E - Commerce Management. Pearson.
Lua i Stíl Chicago (17ú heag.)Chaffey Dave. E - Business and E - Commerce Management. Delhi: Pearson, 2012.
Lua MLA (9ú heag.)Chaffey Dave. E - Business and E - Commerce Management. Pearson, 2012.
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