K.P. PURI, U.S. TIWANA and D.P. CHAUDHARY (2001) “Fodder yield and quality of ryegrass (Lolium perenne) grown pure and in mixture with different seed rates of oat (Avena sativa) and sarson (Brassica campestris)”, Indian Journal of Agronomy, 55(4), pp. 282–285. doi:10.59797/ija.v55i4.4764.