PRABHAKARAN R; C THAMILARASI; JIMIN C JIJI. Implementation of service robot using OCR technique in raspberry PI for visually impaired person. International journal of intellectual advancements and research in engineering computations, [S. l.], v. 7, n. 1, p. 192–196, 2021. Disponível em: https://ijiarec.com/ijiarec/article/view/180. Acesso em: 2 may. 2024.