PEARSON, R. S. Note on Tapping of Boswellia Serata Trees in the Siwalik Division, U. P. Indian Forester, [S. l.], v. 39, n. 4, p. 197–201, 1913. DOI: 10.36808/if/1913/v39i4/17636. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/17636. Acesso em: 28 oct. 2025.