Watt, William Montgomery
Muhammad at Mecca
At The Clarendon Press, 1953
 Buku Teks SO
Mccarthy, Cormac
The road
Vintage International, 2006
 Buku Teks SO
Howard university library:African-American mecca
 Artikel Jurnal
Hutchinson, Alfred
Road to Ghana
John Day, 1960
 Buku Teks SO
Davison, Frank Dalby, 1983-1970
Road to yesterday
Angus and Robertson, 1970
 Buku Teks SO