G. Mokhtar (1981-01-01). Ancient civilizations of Africa. Unesco. International Scientific Committee for the Drafting of a General History of Africa. p. 309. ISBN9780435948054. Retrieved 2012-06-19 – via Books.google.com.
Imperial College London England: Studying engineering at Imperial: Engineering courses are offered in five main branches of engineering: aeronautical, chemical, civil, electrical and mechanical. There are also courses in computing science, software engineering, information systems engineering, materials science and engineering, mining engineering and petroleum engineering.