Slavery in Africa committed by Africans

Recommendable!

It does not hurt to remind that slavery has a very long, complex and dynamic history involving many civilizations, ethnicities, regions of the world etc.!

Fact is that some Africans themselves were slaveholders and/or involved in the slave trade. This article mentions e.g. the Asante of Ghana, Igbo of southeastern Nigeria and others.

This article below does not even cover the involvement of Arab countries.

From the abstract:

"Slavery was a common feature of social organization in many African societies up to the late nineteenth century, including those with a small minority of slaves, and a few outright slave societies (in which slave labour was the primary mode of production). 

Enslaved people were traded within several commercial networks connected to the African continent from ancient to modern times, including those of the ancient and classical Mediterranean, the Islamic realms, and the early modern Atlantic.

In the West African region that corresponds to the modern Republic of Ghana, slavery was likely a very minor aspect of social and economic life up to at least the sixteenth century, then expanded to become a notable feature of social organization during the seventeenth to nineteenth centuries.
African slavery resembled Islamic slavery in that young female slaves were typically valued above others, and one of the most common uses of slaves was as wives and mothers in the family of the slave owner.

At the apogee of slavery in Ghana during the nineteenth century, however, mainly male slave labour was the basis of commercial agricultural production in some areas, while older forms of slavery persisted throughout the region."

African Slavery: The Other Side | Mises Institute

Public slavery in the precolonial Gold Coast (Ghana) (no public access)