Saha, Shubhrajyoti, et al. “Productivity Enhancement of Organic Lettuce through Use of Organic Manures, Biofertilizers and Bio-Stimulants”. Vegetable Science, vol. 47, no. 01, June 2020, pp. 44-48, https://doi.org/10.61180/vegsci.2020.v47.i1.08.