A. KUMAR, A. K. ROHILA, and V. K. PAL, “Profitability and resource use efficiency in vegetable cultivation in Haryana: Application of Cobb-Douglas production model”, Indian J Agri Sci, vol. 88, no. 7, pp. 1137–1141, Jul. 2018, doi: 10.56093/ijas.v88i7.81601.