S. K. SARKAR, K. LAL, S. DASH, S. K. YADAV, and HIMANSHU, “Generation of 2n series fractional factorial plans robust against linear-trend”, Indian J Agri Sci, vol. 93, no. 9, pp. 1041–1044, Jul. 2021, doi: 10.56093/ijas.v93i9.108863.