PRATAP KUMAR SAHA. On some topological sets. Malaya Journal of Matematik, India, v. 6, n. 04, p. 850–853, 2018. DOI: 10.26637/MJM0604/0022. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/948. Acesso em: 16 jul. 2024.