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2. New York’s Food and Life Sciences Bulletin;GS Abawi,1979
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4. Agrios, G. N., 1978, “Plant Pathology,” Academic Press, New York, 2nd ed.
5. Anonymous, 1977, Pest resistance to pesticides and crop loss assessment, FAO Plant Production and Protection Paper, 6, Report to 1st Session of the FAO Panel of Experts, AGP:1976/M/10, p. 42.