Rocha, R.P. da, Ravagnani, M.A.S.S., Andrade, C.M.G. e Paraí­so, P.R. 2014. <b>Use of excel worksheets with user-friendly interface to minimize the makespan in a permutation flow shop production system. Acta Scientiarum. Technology. 36, 3 (fev. 2014), 453–461. DOI:https://doi.org/10.4025/actascitechnol.v36i3.14928.