Lichen Species as Bio-accumulator of some Halogens on Mount Cameroon Valcano, West Africa. Global Journal of Human-Social Science, [S. l.], v. 22, n. B4, p. 19–35, 2023. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/103574. Acesso em: 17 jan. 2026.