RAHMAN, A.; FATHIMA, A.; RANGANATHAN, T. Nat Production Engineering:Depth Classification. Journal of Information and Knowledge, [S. l.], v. 1, n. 2, p. 133–146, 2013. DOI: 10.17821/srels/1964/v1i2/40114. Disponível em: https://srels.org/index.php/sjim/article/view/40114. Acesso em: 19 apr. 2025.