1. A provisional checklist of the flowering plants of Ceylon;Abheywickrama;Ceylon J. Sci. (Biol. Sec.),1959
2. Insect pests of stored spices and their control;Abraham;Arecanut Spices Bull.,1975
3. Spices as intercrops in coconut and arecanut gardens;Abraham;Arecanut J.,1956
4. “Karuna” is excellent as shade tree for cardamom;Abraham;Indian Farming,1957
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