Business World. (2011). The SME Whitebook 2011-2012. Express Building.
Chicago Style aipamenaBusiness World. The SME Whitebook 2011-2012. Express Building, 2011.
MLA aipamenaBusiness World. The SME Whitebook 2011-2012. Express Building, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.