Dr. S. Janardhana Rao, Mrs.K. Leelavathi, Dr.J.Krishna Chaitanya,. “Hand Gestureand Face Recognition System For Visually Impaired People”. Design Engineering (July 31, 2021): 5661- 5675. Accessed May 1, 2024. http://www.thedesignengineering.com/index.php/DE/article/view/3062.