S. S. Hotkar, S. G. Shirole, S. C. Haloli, A. D. Rathod, and M. B. Mane. “MANUAL MOVABLE FOLDABLE LADDER”. International Engineering Journal For Research & Development 10, no. 2 (July 10, 2025): 4. Accessed June 30, 2026. http://www.iejrd.com/index.php/iejrd/article/view/3256.