Joshi, B. (1988) “કાગળના દફતરોની સાચવણી”, Vidyapith (વિદ્યાપીઠ), 26(1-6), pp. 60–61. Available at: http://journal.gujaratvidyapith.org/index.php/vp/article/view/917 (Accessed: 7 December 2025).