1. APHA: 1985, ‘Standard Methods for the Examination of Water and Waste Water’, 16th Ed. Washington, D.C.
2. Darwin, G. E. and Buddery, J. H.: 1960, ‘Beryllium’ Butterworth Scientific Publication, London.
3. Fusheng, Wei., Enjiang, Ten. and Zhongxiang, Wu.: 1990, ‘Enhancement of the Fluorescence of the Beryllium-Morin complex by Non-ionic Surfactants’,Talanta 37, 947.
4. Kabata-Pendias, A. and Pendias, H.: 1984, Trace Elements in Soils and Plants, CRC Press.
5. Kaplan, D. I., Sajwan, K. S., Adriano, D. C. and Gettier, S.: 1990,Water, Air, and Soil Pollut. 53, 203.