Taravera, M. E., and J. R. Padilla. “Evaluation of Organic Mulches and Plastic Coverings for the Control of Weeds in Tomato (Lycopersicon Esculentum Miller)”. Agronomía Mesoamericana, vol. 11, no. 2, July 2006, pp. 101-7, doi:10.15517/am.v11i2.17323.