RODRIGUES, Carla Igreja; MAIA, Rodrigo; MÁGUAS, Cristina. Comparing total nitrogen and crude protein content of green coffee beans (Coffea spp.) from different geographical origins. Coffee Science - ISSN 1984-3909, [S. l.], v. 5, n. 3, p. 197–205, 2011. Disponível em: https://coffeescience2.ufla.br/index.php/Coffeescience/article/view/115. Acesso em: 21 oct. 2026.