1. Agusti, M. and Almela (1991).Aplicación de fitorreguladores en citricultura.Ed. AEDOS, S.A., Barcelona, Spain.
2. Coggins, C. W., Jr. and Hield, J. Z. (1968). Plant-growth regulators. In:The citrus industry, Vol II(Reuther W., Batchelor, L. D. and Webber, H. J., Eds). University of California, Berkeley, USA, 371–89.
3. Hirose, K., Iwagaki, I. and Suzuki, K. (1978). IZAA (5-chloro-indazol-8-acetic acid ethyl ester) as a new thinning agent of Satsuma mandarin(C. unshiuMarc).Proceedings of the International Society of Citriculture,270–3.
4. Iwahori, S. (1978). Use of growth regulators in control of cropping of mandarin varieties.Proceedings of the International Society of Citriculture,263–70.