CAGNO, N. Some important aspects of guarana (Paullinia cupana). Study and characterization of its alkaloid. Instituto Adolfo Lutz Journal - RIAL, [S. l.], v. 2, n. 1, p. 69–99, 1942. DOI: 10.53393/rial.1942.2.33084. Disponível em: https://periodicos.saude.sp.gov.br/RIAL/article/view/33084. Acesso em: 20 may. 2024.