Thomas Sowell (2005). «The Real History of Slavery». Black rednecks and white liberals : and other cultural and ethnic issues(en inglés). Encounter Books. p. 121. ISBN1-59403-086-3. Consultado el 7 de marzo de 2023. «By and large, men from Europe or the Western Hemisphere came to the coasts of Africa, bought their slaves, and left as soon as possible [...] The stronger African peoples captured and enslaved the weaker peoples».