SAKHEN SOROKHAIBAM, N. ANANDO SINGH, and L. NABACHANDRA, “Effect of liming, planting time and tillage on system productivity, profitability and resource-use efficiency of rice (Oryza sativa)-based cropping systems under rainfed valley land condition of North East India”, IJA, vol. 61, no. 2, pp. 138–147, Oct. 2001, doi: 10.59797/ija.v61i2.4357.