1. Determination of heavy metal concentration in Neem (Azadirachta indica) leaves, bark and soil along some major roads in Lafia, Nasarawa State Nigeria;A;J. Environ. Chem. Ecotoxicol.,2016
2. Assessment of neem tree (Azadirachta indica) leaves for pollution status of maiduguri environment, Borno state, Nigeria;Abdullateef;Int. J. Eng. Sci. (IJES),2014
3. Chemical Analysis of Ecological Materials;Allen,1974
4. Trace elements accumulation and temporal trends in leaves of urban deciduous trees (Aesculus hippocastanum and Tilia spp.);Aničić;Ecol. Indicat.,2011
5. Responding to the Transport Crisis in Karachi. London, UK;Arif Hasan,2015