Hasanuzzaman, Md, SM Tareeq, MA Bhuiyan, Y Shirai, and H Ueno. “ASL Characters Recognition Using Person Specific Subspace Method”. Daffodil International University Journal of Science and Technology 4, no. 2 (February 10, 2010): 39–52. Accessed January 27, 2026. https://www.banglajol.info/index.php/DIUJST/article/view/4366.