SULIMAN, Abdallah M.A.; ALI, Ali O.; A.A. IDRISS, Sharaf Eldeen; ABDUALRAHMAN, Mohammed A.Y. A Comparative Study on Red and White Karkade (Hibiscus sabdariffa L.) Calyces, Extracts and Their Products. Pakistan Journal of Nutrition, Pakistan, v. 10, n. 7, p. 680–683, 2011. DOI: 10.3923/pjn.2011.680.683. Disponível em: https://pjnonline.org/pjn/article/view/1472. Acesso em: 15 aug. 2025.