1. R. Harling, 1983 : Resistance to Fusarium wilt disease in carnation . Ph. D. Thesis , University of Manchester.
2. C. W. S. Hartley, 1977 : The Oil Palm (Elaeis guineensis Jacq.), Second ed. Longmans, London.
3. Y. W. Ho, 1984 : Distribution and pathogenic potential of soil fusaria from selected oil palm habitats in West Malaysia . Ph. D. Thesis . University of Agriculture, Malaysia.
4. Fusarium oxysporum var. redolens from Africa as a cause of vascular wilt disease of oil palm