MURALI JHA; AMIT UPADHYAY; ASHISH PAL; PROF. RAJESH PATIL. CHARACTER RECOGNITION WITH AUDIO SPEECH USING PORTABLE DEVICE AND CAMERA. International Journal of Advance Research in Engineering, Science & Technology, [S. l.], v. 4, n. 3, p. 540–543, 2017. Disponível em: https://ijarest.org/index.php/ijarest/article/view/1009. Acesso em: 17 dec. 2025.