RAMADAN, Khaled; NADER, Souhail; IBRAHIM, Amina. Evaluation of sequential extraction of some biological materials from orange fruits peel (Citrus sinensis). Bulgarian Journal of Agricultural Science, Sofia, BG, v. 24, n. 6, p. 1129–1136, 2018. Disponível em: https://agriacad.eu/ojs/index.php/bjas/article/view/5015.. Acesso em: 9 nov. 2026.