PALIWAL, G. Phloem in Pinophyta. Journal of Palaeosciences, [S. l.], v. 41, p. 114–127, 1992. DOI: 10.54991/jop.1992.1112. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/1112. Acesso em: 5 may. 2024.