1. Adeyoju SK (1975) Forestry and the Nigerian economy. Ibadan University Press, Nigeria
2. Ajala OO (2006) Evaluation of physical and mechanical properties of Annungeria robusta–a lesser-known species. Unpublished M.Phil Dissertation in the Department of Forest Resources Management, University of Ibadan, Nigeria
3. Barany M, Hammett AL, Araman P (2003) Lesser used species of Bolivia and their relevance to sustainable forest management. For Products J 53(7/8):28–33
4. Darby J (1999) Certification and Sustainable Forest Management in Bolivia. Technical Document 79/1999. USAID, LA Paz, Bolivia
5. FAO (2005) Global Forest Resources Assessment 2005 Progress Towards Sustainable Forest Management. FAO Rome, Forestry Paper