PURI, G. S. The Foliar Ash Content in some <I>Shorea robusta</I> Trees of Different Quality Classes and its Relation with Soil Calcium in some forests of India. Indian Forester, [S. l.], v. 81, n. 2, p. 98–102, 1955. DOI: 10.36808/if/1955/v81i2/23926. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/23926. Acesso em: 4 dec. 2025.