Look in countries like Australia / New Zealand where three-year undergraduate degrees are the norm. Otago has an online MBA, that might be worth looking at.
Other than that, some schools with accept a 3-year degree in lieu of a 4-year degree, depending on where you went to school. It really depends, and many will not list this info on their website. Contact the ones you're interested in directly.
Look in countries like Australia / New Zealand where three-year undergraduate degrees are the norm. Otago has an online MBA, that might be worth looking at.
Other than that, some schools with accept a 3-year degree in lieu of a 4-year degree, depending on where you went to school. It really depends, and many will not list this info on their website. Contact the ones you're interested in directly.