Formula covering black holes and the industrial sample negative germ. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 11, n. 09, p. 137–139, 2023. DOI: 10.18535/ijsrm/v11i09.aa03. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/4688. Acesso em: 23 nov. 2024.