1. Bingham, F.T., 1982. Boron. In: A.L. Page (Ed.) Methods of Soil Analysis, Part 2, 2nd Edition, pp. 431–447. Am. Soc. of Agronomy & Soil Sci. Soc. of Am., Madison.
2. Cartwright, B., B.A. Zarcinas & A.H. Mayfield, 1984. Toxic concentrations of boron in a red-brown earth at Gladstone, South Australia. Aust. J. Soil Res. 22: 321–332.
3. Cartwright, B., B.A. Zarcinas & L.R. Spoucer, 1986. Boron toxicity in South Australian barley crops. Aust. J. of Agric. Res. 37: 351–359.
4. CIMMYT, 1986. Durum Wheat: Names, Parentage, Pedigrees and Origins. Compiled by P. Brajcich, N. Pfeiffer & E. Autrique. CIMMYT, Mexico.
5. Gupta, U.C., 1979. Boron nutrition of crops. Adv. Agron. 31: 273–307.