KHAN, M. A. Waheed. Pun-chun Crown-meter. Indian Forester, [S. l.], v. 97, n. 6, p. 332–337, 1971. DOI: 10.36808/if/1971/v97i6/26424. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/26424. Acesso em: 21 aug. 2025.