Singh, M., and M. P. Singh. “CHLOROPHYLL CONTENT AND ITS RELATION TO PRODUCTIVITY OF CROPS AND WEEDS IN A TROPICAL AGROECOSYSTEM AT GUJAR LAKE MARGIN, INDIA”. Ecoprint: An International Journal of Ecology, vol. 23, Dec. 2016, pp. 39-44, doi:10.3126/eco.v23i0.20650.