GHIM HOCK ONG; CHEE KONG YAP; MAZIAH MAHMOOD; SUHAIMI HAMZAH. Barium Levels in Soils and Centella asiatica. Tropical Life Sciences Research, [S. l.], v. 24, n. 1, p. 55–70, 2013. Disponível em: https://ejournal.usm.my/tlsr/article/view/tlsr_vol24-no-1-2013_6.. Acesso em: 3 apr. 2025.