| Authors(s) | Songa, J.M. and J.K. Ampofo | 
| Year | 1999 | 
| Title | Ecology of the bean stem maggot attacking dry bean (Phaseolus vulgaris L.) in the semi-arid areas of eastern Kenya. International Journal of Pest Management 45: 1, 35-40. | 
| Authors(s) | Songa, J.M. and J.K. Ampofo | 
| Year | 1999 | 
| Title | Ecology of the bean stem maggot attacking dry bean (Phaseolus vulgaris L.) in the semi-arid areas of eastern Kenya. International Journal of Pest Management 45: 1, 35-40. |