BBC News Africa - The Kofar Mata dye pits in Kano, Nigeria

File:Kofar Mata Dye Pit since 1498.jpg - Wikipedia

Kofar Mata Dye Pits: Diary of a Dying Business – Freedom Radio Nigeria

Why Nigeria's historic dye pits in Kano risk closure

Nigeria kano dye hi-res stock photography and images - Alamy

Kofar Mata dye pits don see more dan 500 years and seven generations - BBC News Pidgin

47 Kofar Mata Stock Photos, High-Res Pictures, and Images - Getty Images

Kano (city) - Wikipedia

5 centuries in business: Nigeria's ancient dye pits

5 centuries in business: Nigeria's ancient dye pits