V. K, T. V. Sivaramakrishnan, N. Murugan, D. Deepankar, and B. Srinivasa Raghavan, “Implementation of MCDM model in lean manufacturing using grey relational analysis in automotive industry”, IJET, vol. 7, no. 2.33, pp. 48–50, Jun. 2018, doi: 10.14419/ijet.v7i2.33.13852.