TJHIA, Betty; AZIZ, Sandra Arifin; SUKETI, Ketty. Correlations between Leaf Nitrogen, Phosphorus and Potassium and Leaf Chlorophyll, Anthocyanins and Carotenoids Content at Vegetative and Generative Stage of Bitter Leaf (Vernonia amygealina Del.). Journal of Tropical Crop Science, [S. l.], v. 5, n. 1, p. 25–33, 2018. DOI: 10.29244/jtcs.5.1.25-33. Disponível em: https://j-tropical-crops.com/index.php/agro/article/view/143. Acesso em: 26 apr. 2025.