1. Carsel, R. F., C. N. Smith, L. A. Mulkey, J. D. Dean, and P. P. Jowise. 1984. User's manual for the pesticide root zone model: Release I. U.S. Environmental Protection Agency, Athens, Georgia. EPA-600/3-84-109.
2. ACS Symposium Series;S. Z. Cohen,1984
3. Crawford, N. H. and A. S. Donigian. 1973. Pesticide transport and runoff (PTR) model for agricultural lands. US Environmental Protection Agency, EPA-660/2-74-013, Athens, Georgia.
4. Davidson, J. M., C. E. Reick, and P. W. Santelman. 1968. Influence of water flux and porous materials on the movement of selected herbicides.Soil Science Society of American Proceedings 32:629–633.
5. Dulaney, R. A. 1987. A geographic information system for large area environmental analysis. GIS '87 Conference Proceedings, American Society for Photogrammetry and Remote Sensing, American Congress on Surveying and Mapping, Falls Church, Virginia, Vol. I, pp. 206–215.