VERMA, V. P. S. Use of Sulphuric Acid Paste in Resin Tapping of Chir Pine. Indian Forester, [S. l.], v. 97, n. 8, p. 458–461, 1971. DOI: 10.36808/if/1971/v97i8/26441. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/26441. Acesso em: 10 jul. 2025.