1. Adriance, G. W. and Brison, F. R. (1955). “Propagation of Horticultural Plants”. Second Edition. New York: McGraw Hill Company.
2. Child, R. (1974). “Coconuts”. Second Edition. London: Longman Group Ltd.
3. Edmond, J. B. (1964). “Fundamentals of Horticulture.” Third Edition. New York: McGraw-Hill Company.
4. THE USE OF BARK WASTE AS A SUBSTRATE IN HORTICULTURE