WATSON, J. G. A Note on the Exploitation of Damar Penak in the Federated Malay States. Indian Forester, [S. l.], v. 53, n. 10, p. 552–560, 1927. DOI: 10.36808/if/1927/v53i10/19260. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/19260. Acesso em: 5 dec. 2025.