1. Southey, J. F. (1970). Laboratory methods for work with plant and soil nematodes.Technical BulletinNo. 2. Her Majesty’s Stationary Office, London, 34–8.
2. Yeoman, M. M. (1973). Tissue culture techniques. In:Botanical monographs, Vol. II. Plant tissue and cell culture.(H. E. Street, Ed).