PARIKH, Ramlal. કાગળના દફતરોની સાચવણી. Vidyapith (વિદ્યાપીઠ), [S. l.], v. 31, n. 1-6, p. 59, 1993. Disponível em: https://journal.gujaratvidyapith.org/index.php/vp/article/view/644. Acesso em: 5 jul. 2026.