VARMA, B. S. Isolation of Costus Oil from Costus Roots. Indian Forester, [S. l.], v. 77, n. 8, p. 513–516, 1951. DOI: 10.36808/if/1951/v77i8/23312. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/23312. Acesso em: 21 aug. 2025.