M.Gowthami, Ms, Mr P.Karthikeyan, P Kishore, and R Arun Aravinth. “Train Ticket Inspection and Validation Using Biometrics”. International Journal of Engineering and Technology 7, no. 2.33 (June 8, 2018): 1288–1291. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/18121.