MAL, TODAR, et al. “Productivity and Economics of Different Cropping Systems in Relation to Tillage, Mulching and Fertilizer Management Practices in North-Western Indo-Gangetic Plains of India”. The Indian Journal of Agricultural Sciences, vol. 88, no. 2, Apr. 2018, pp. 216-21, https://doi.org/10.56093/ijas.v88i2.79171.