C.S. AULAKH, M.S. GILL, R.K. MAHEY, S.S. WALIA, and GURMINDER SINGH. 2001. “Effect of Nutrient Sources on Productivity of Fodder Cropping Systems in Punjab”. Indian Journal of Agronomy 57 (2): 200-205. https://doi.org/10.59797/ija.v57i2.4621.