1. Cowpea reactions to Alectra vogelii I: effect on growth;Alonge S.O.;Crop Protection,2001
2. Cowpea reactions to Striga gesnerioides II: effect on grain yield and nutrient composition;Alonge S.O.;Crop Protection,2005
3. Bagnall-Oakeley, H. , Gibberd, V. and Nyongesa, T.E. (1991) The incidence and control of A. vogelii in Embu district, Kenya. In: Weber, H.C. and Forstreuter, W. (eds) Proceedings of the 4th International Symposium on Parasitic Flowering Plants, Marburg, Germany, 1987 . Philipps-Universität, Marburg, Germany, pp. 53–66.
4. Beck, B.D.A. (1987) The effect of attack by Alectra vogelii Benth. on the yield of njugo beans (Vigna subterranea (L.) Verdc.). In: Weber, H.C. and Forstreuter, W. (eds) Proceedings of the 4th International Symposium on Parasitic Flowering Plants, Marburg, Germany, 1987 . Philipps-Universität, Marburg, Germany, pp. 79–82.
5. Botha P.J. (1946) Die lewensgeskiedenis morfologie en ontkiemingsfisiologie van Alectra vogelii Benth. PhD thesis Potchefstroom University for Christian Higher Education Potchefstroom South Africa.