1. Afforestation of restored tin-mining land in Nigeria;Wimbush;Commonw. For. Rev.,1963
2. The tree that caused a riot;Joyce;New Scientist,1988
3. Soil factors influencing yields of Eucalyptus camaldulensis on former tin-mining land in the Jos Plateau region, Nigeria
4. Alexander M. (1986). Soil Characteristics and the Factors Influencing Their Development on Mine Spoil of the Jos Plateau. Interim Report No. 11, Jos Plateau Environmental Resources Development Programme, University of Durham, Durham, England, UK: 167 pp., illustr.
5. Alexander M.J. (1985). A History of Mine Land Reclamation on the Jos Plateau. Interim Report No. 4, Jos Plateau Environmental Resources Development Programme, University of Durham, Durham, England, UK: 24 pp., illustr.