Biroju Ravikiran, Revathi Sasana, Durgaprasad Anagandula. “RASPBERRY PI BASED SIGN TO SPEECH CONERSION SYSTEM FOR MUTE COMMUNITY ”. History of Medicine 7, no. 2 (December 8, 2021): 370–377. Accessed September 13, 2025. http://www.historymedjournal.com/index.php/medicine/article/view/1083.