found: His Full text of interview on impact of the current world petroleum situation on Nigeria's petroleum activities, 1978:t.p. (Col. M. Buhari, Commissioner of Petroleum)
found: Odeh, Rosaline. Muhammadu Buhari, 1984:p. 13 (b. 12-17-42)
found: OCLC, May 6, 2015(access points: Buhari, M.; Buhari, Muhammadu; Buhari, Mohammadu; usage: M. Buhari; Muhammadu Buhari)
found: Wikipedia, May 6, 2015(Muhammadu Buhari; b. Daura, British Nigeria; president-elect of Nigeria, taking office 29 May 2015, the first time in Nigeria's history that an incumbent elected president will peacefully transfer power to an elected leader of the opposition; retired major general in the Nigerian Army; was head of state 31 Dec. 1983 - 27 Aug. 1985, taking power in a military coup; party, All Progressives Congress)
found: World factbook, May 31 2018: Nigeria, government (President Maj. Gen. (ret.) Muhammadu BUHARI (since 29 May 2015))
