MEDEIROS, S. H. da S.; NASCIMENTO, C. C. do; OLIVEIRA, B. R.; SOUZA, M. A. S. de; BARROS, F. B. Diagnosis of hollow trees in an area of effective sustainable forest management in the Amazon forest. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 9, n. 1, p. 527–539, 2021. DOI: 10.31686/ijier.vol9.iss1.2926. Disponível em: https://www.ijier.net/ijier/article/view/2926. Acesso em: 14 apr. 2021.