- EL-ZEFTAWI, B. M., THORNTON, I. R. and GOULD, I. V. (1977). Effects of tree shaking, ethephon and rootstocks on fruit removal, abscission and shelf life of citrus species. Journal of Horticultural Science, 52, 461–8.
- EL-ZEFTAWI, B. M. (1973). Chemical colouring of lemon fruit. Food Technology in Australia, 25, 151–3.
- EL-ZEFTAWI, B. M. (1978). Effects of abscission chemicals on fruit loosening of citrus. Proceedings of the XXth International Horticultural Congress, Sydney.
- THORNTON, I. R., EL-ZEFTAWI, B. M. and GOULD, I. V. (1978). The citrus mechanical harvesting system being developed at Mildura, Victoria, Australia. Proceedings of the XXth International Horticultural Congress, Sydney.
- WILSON, W. C. and HOLM, R. E. (1976). Combinations of Release, Acti-Acid, and Sweep for abscission of oranges. Proceedings of the Florida Horticultural Society, 89, 32–4.
Journal of Horticultural Science
Volume 55, 1980 - Issue 3