वर्तमान में ज्ञान. International Journal of Science and Social Science Research, [S. l.], v. 3, n. 2, p. 50–52, 2025. DOI: 10.63671/ijsssr.v3i2.437. Disponível em: https://www.ijsssr.com/index.php/j/article/view/437. Acesso em: 17 apr. 2026.