References
- AOAC (1970): Official methods of analysis, 11th edn, pp 123-37. Washing DC: Association of Official Agricultural Chemists.
- M.E.A.U. (1963): Methods de analise de plantas, p 43. Lisbon: Missade estudos Agronomicos do Ultramar.
- Okafor, J.C. (1975): The place of wild (uncultivated) fruits and vegetables in the Nigerian diet. Proc. Nat. Sminar on Fruits and vegetables, Ibadan, 12-17th Oct., pp 153-171.
- Yuen, S.H. & Pollard, A. G. (1955): The determination of phosphorous in plants and soils by molybdenum method. J. Sci. Fd. Agric. 6, 223–225.