SINGH, Shivraj; ANJALI GAUR; SINGH, Dhavendra; SINGH, Dipti. Two Echelon Supply Chain Model with lead time and effect of carbon emission under fuzzy environment. Brazilian Journal of Biometrics, [S. l.], v. 44, n. 1, p. e-44823, 2026. DOI: 10.28951/bjb.v44i1.823. Disponível em: http://200.131.250.9/index.php/BBJ/article/view/823. Acesso em: 3 mar. 2026.