SHRIKANT CHITALE, G.P. PALI, ALOK TIWARI, and J.S. URKURKAR, “Long-term organic nutrient management in high value rice (Oryza sativa)potato (Solanum tuberosum)/onion (Allium cepa) cropping system in Chhattisgarh”, IJA, vol. 60, no. 2, pp. 197–204, Oct. 2001, doi: 10.59797/ija.v60i2.4462.