CORDELL, Geoffrey A. Accepting Our Gifts from Nature - Now and in the Future. Part III. Revista de Química, [S. l.], v. 18, n. 2, p. 33–41, 2004. Disponível em: https://revistas.pucp.edu.pe/index.php/quimica/article/view/18714. Acesso em: 8 dic. 2025.