Mules carry the bags of salt in el sod the House Of Salt, … | Flickr
Ethiopia's stone carrying donkeys | Brooke
Black and white photo of the War in Ethiopia after the Italian invasion of 1935; arms and munitions of the Ethiopian Army being transported by two mules Stock Photo - Alamy
Shadow of Equus: Ethiopia's Stone Donkeys | Horse Journals
Give Working Equines a Better Life in Ethiopia — Brooke USA
Barnyard Basics: Health concerns for donkeys and mules | Columnists | postregister.com