GOPINATH, M. A. Prof. S. R. Ranganathan: Bibliographic Control Operands. Journal of Information and Knowledge, [S. l.], v. 42, n. 3, p. 217–220, 2005. DOI: 10.17821/srels/2005/v42i3/44513. Disponível em: https://srels.org/index.php/sjim/article/view/44513. Acesso em: 9 jan. 2025.