1. AOAC, 2000. Official Methods of Analysis of AOAC International, 16th ed. AOAC International, Washington DC, USA.
2. Bengaly, K., Mhlongo, S. and Nsahlai, I.V., 2007. The effect of wattle tannin on intake, digestibility, nitrogen retention and growth performance of goats in South Africa, Livestock Research and Rural Development, 19, 50-51.
3. Hershey, J.W., Oostdyk, T.S. and Keliher, P.N., 1988. Determination of arsenic and selenium in environmental and agricultural samples by hydride generation atomic adsorption spectrometry, Journal of Association of Official Analytical Chemistry 71, 1090-1093.
4. Khokhar, S. and Apenten, R.K., 2003. Iron binding characteristics of phenolic compounds: some tentative structure–activity relations, Food Chemistry, 81, 133-140.
5. Kumar, R. and Singh, M. 1984. Tannins: their adverse role in ruminant nutrition, Journal of Agricultural and Food Chemistry, 32, 447–453.