Comparative study of Devnagari script on porous and non-porous surfaces using unconventional writing instruments. IJSRC [इंटर्नेट]. 6 जून, 2025 [उल्लेखित 22 अक्टूबर, 2026];13(6). पर उपलब्ध: https://ijournals.in/journal/index.php/ijsrc/article/view/355