1. JS Angle, and JR Heckman .1986 .Effect of soil pH and sewage sludge on VA mycorrhizal infection of soybeans .Plant Soil,93:437 -41 .
2. AJM Baker, and RR Brooks .1989 .Terrestrial higher plants which hyperaccumulate metallic elements - a review of their distribution, ecology and phytochemistry .Biorecovery,1:81 -126 .
3. G. Bañuelos, DB Vickerman, and JT Trumble .et al.2002 .Biotransfer possibilities of selenium from plants used in phytoremediation .Int J Phytoremediat,4:315 -31 .
4. G. Bañuelos, N. Terry, and DL LeDuc .et al.2005 .Field trial of transgenic Indian mustard plants shows enhanced phytoremediation of selenium-contaminated sediment .Environ Sci Technol,39:1771 -77 .
5. T. Barac, S. Taghavi, and B. Borremans .et al.2004 .Engineered endophytic bacteria improve phytoremediation of water-soluble, volatile, organic pollutants .Nat Biotechnol,22:583 -88 .