P. K. SINGH, A. S. JADHAV, M. C. VARSHNEY, and N. L. BOTE. “Evaluating Intercropping Systems on the Basis of Transmitted Photo-Synthetically Active Radiation”. Journal of Agrometeorology, vol. 4, no. 2, Dec. 2002, pp. 191-3, doi:10.54386/jam.v4i2.469.