RAGHUPATHI, H.B.; SAKTHIVEL, T.; RAVISHANKAR, H. Preliminary DRIS ratio norms for diagnosis of nutrient imbalance in Coorg mandarin. Indian Journal of Horticulture, [S. l.], v. 70, n. 01, p. 33–36, 2013. Disponível em: https://journal.iahs.org.in/index.php/ijh/article/view/1425. Acesso em: 18 apr. 2025.