Trevisan Weber, C., Ranzan, L., Menz Liesegang, L.L., Ferreira Trierweiler, L. and Trierweiler, J.O. 2020. A circular economy model for ethanol and alcohol-based hand sanitizer from sweet potato waste in the context of COVID-19. Brazilian Journal of Operations & Production Management. 17, 3 (Sep. 2020), 1–12. DOI:https://doi.org/10.14488/BJOPM.2020.028.