1. Street, H. E. 1973. Plant tissue and cell culture.Botanical Monogr. Vol. II. Blackwell Scientific Publications, London.
2. Street, H. E. 1966. The nutrition and metabolism of plant tissues and organ cultures. In: E. N. Wilmer, Ed.,Cells and Tissues in Culture. Vol. 3. Academic Press, New York, pp. 553–629.
3. Butenko, R. G. 1968.Plant Tissue Culture and Plant Morphogenesis. Translanted from Russian. Israel Program for Scientific Translation, Jerusalem.
4. Carew, D. P., and E. J. Staba. 1965. Plant tissue culture; its fundamentals, application and relationship to medicinal plant studies. Lloydia 28: 1–26.
5. Puhan, Z., and S. M. Martin. 1971. The industrial potential of plant cell culture. Prog. Ind. Microbiol. 9: 13–39.