NEELAMEGHAN, A. Non-Primary Basic Subject. Journal of Information and Knowledge, [S. l.], v. 10, n. 2, p. 189–201, 1973. DOI: 10.17821/srels/1973/v10i2/49311. Disponível em: https://srels.org/index.php/sjim/article/view/49311. Acesso em: 17 apr. 2025.