1. Bavappa KVA and Jacob VJ (1981) A model for mixed cropping, CERES, May-June, 1981:44?46
2. Bavappa KVA and Jacob (1982) High intensity multi-species cropping world crops 34(2):47?50
3. Liyanage M De, Tejwani KG and Nair PKR (1984) Intercropping under Coconuts in Sri Lanka. Agroforestry Systems 2:215?228
4. Jacob VJ (1982) Alternative uses of uneconomic tea and rubber lands and their employment and income implications. Paper presented at the ILO/ARTEP/SLFI National Seminar on productive employment promotion in the plantation crops sector, 14?16 December, 1982, Colombo, Sri Lanka
5. Jacob VJ (1984) Plantation crops in small holder Development in KEDA Region. UNDP/ UNDTCD Consultancy report submitted to the KEDA Regional Development Authority of Malaysia (unpublished)