1. Abraham, T., 1991. The biology, significance and control of the maize weevil, Sitophilus zeamais Motsch. (Coleoptera: Curculionidae) on stored maize. M.Sc. Thesis presented to the School of Graduate Studies of Haramaya University of Agriculture, Ethiopia, 250 pp.
2. Multiple screening for aphid resistance in Indian mustard, Brassica juncea (Linn) Czern & Coss;Abraham;Cruciferae Newslett.,1992
3. Principles of Plant Breeding;Allard,1960
4. Anand, I.J., 1976. Oil quality vis-à-vis aphid resistance in Brassicae. Paper presented in the seminar-cum-workshop on oilseed research in India. PKV Nagpur, 5–9 April 1976.
5. Inheritance of non-waxiness and tolerance to aphid in Indian mustard;Angadi;J. Oilseed Res.,1987