Ontogenic changes in hypericin content of some Hypericum species in natural pastureland of Turkey. Bangladesh Journal of Botany, [S. l.], v. 38, n. 1, p. 13–18, 2010. Disponível em: https://www.banglajol.info/index.php/BJB/article/view/5113. Acesso em: 26 jun. 2026.