BHATTACHARYYA, G. POPSI: A Source Language for Organising and Associative Classifications. Journal of Information and Knowledge, [S. l.], v. 19, n. 4, p. 240–266, 1982. DOI: 10.17821/srels/1982/v19i4/49252. Disponível em: https://srels.org/index.php/sjim/article/view/49252. Acesso em: 19 apr. 2025.