1. 1. Abulreesh, A., Osman, G.E.H., Assaeedi, A.S.A., Characterization of insecticidal genes of Bacillus thuringiensis strains isolated from arid environments. Ind J Microbiol.. 2012; 3:500-3.
2. 2. Alley, M.C., Scudiero, D.A., Monks, A., Hursey Czerwinski,.M.J., Fine, D.L., Abbott, B.J., Mayo, J.G., Shoemaker, R.H., and Boyd, M.R. Feasibility of drug screening with panels of human tumor cell lines using a microculture tetrazolium assay. Cancer Research., 1988; 48:3, 589-601.
3. 3. Assaeedi, A.S.A., Osman, G.E.H., Abulreesh, H.H., The occurrence and insecticidal activity of Bacillus thuringiensis in the arid environments. AJCS., 2011; 5:1185-1190.
4. 4. de Maargd, R.A., Bravo, A., Berry, C., Crickmore, N., Schnepf, H.E. Structure, diversity, and evolution of protein toxins from spore-forming entomopathogenic bacteria. Annu Rev Genet., 2003; 37:409-433.
5. 5. Bradford, M.M., A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem., 1976; 72:248-254.