de Paiva, Selma Ribeiro; Figueiredo, Maria Raquel; Kaplan, Maria Auxiliadora Coelho (2005-07-01). "Isolation of secondary metabolites from roots of Plumbago auriculata Lam. by countercurrent chromatography". Phytochemical Analysis (dalam bahasa Inggris). 16 (4): 278–281. doi:10.1002/pca.841. ISSN1099-1565. PMID16042155.
de Paiva, Selma Ribeiro; Figueiredo, Maria Raquel; Kaplan, Maria Auxiliadora Coelho (2005-07-01). "Isolation of secondary metabolites from roots of Plumbago auriculata Lam. by countercurrent chromatography". Phytochemical Analysis (dalam bahasa Inggris). 16 (4): 278–281. doi:10.1002/pca.841. ISSN1099-1565. PMID16042155.
de Paiva, Selma Ribeiro; Figueiredo, Maria Raquel; Kaplan, Maria Auxiliadora Coelho (2005-07-01). "Isolation of secondary metabolites from roots of Plumbago auriculata Lam. by countercurrent chromatography". Phytochemical Analysis (dalam bahasa Inggris). 16 (4): 278–281. doi:10.1002/pca.841. ISSN1099-1565. PMID16042155.