Variability of nutrient absorption in several cocoa planting materials. Pelita Perkebunan (a Coffee and Cocoa Research Journal), [S. l.], v. 6, n. 2, p. 52–57, 1990. DOI: 10.22302/iccri.jur.pelitaperkebunan.v6i2.373. Disponível em: https://mail.ccrjournal.com/index.php/ccrj/article/view/373. Acesso em: 16 jun. 2026.