Lloyd Gutteridge. (2012). IB Business and Management Study Guide: Oxford IB Diploma Program (Study Guide.). Oxford University Press.
Chicago-čujuhus (17. p.)Lloyd Gutteridge. IB Business and Management Study Guide: Oxford IB Diploma Program. Study Guide. Oxford University Press, 2012.
MLA-čujuhus (9. p.)Lloyd Gutteridge. IB Business and Management Study Guide: Oxford IB Diploma Program. Study Guide. Oxford University Press, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.