APÁEZ BARRIOS, P. .; ROCHA GRANADOS, M. del c. .; PEDRAZA SANTOS, M. e. .; RAYA MONTAÑO, Y. a. . Effect of foliar copper application on yield and anthocyanin concentration in Hibiscus sabdariffa calyces. Revista de la Facultad de Ciencias Agrarias UNCuyo, [S. l.], v. 50, n. 2, p. 65–75, 2018. Disponível em: https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3460. Acesso em: 6 sep. 2026.