of SierraLeone. G. Richards limited. pp. 11–12. Countries and Their Cultures. "Culture of SierraLeone". සම්ප්රවේශය 22 February 2008. "SierraLeone History"
Suzanne (2006). Cultures of the World: SierraLeone. Marshall Cavendish. p. 7. ISBN 978-0-7614-2334-8. "SierraLeone". The World Factbook. CIA. සම්ප්රවේශය