Mohammed Nadzri, Nur Izzati, and Khairul Azami Sidek. “Photoplethysmogram Based Biometric Identification for Twins Incorporating Gender Variability”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 8, no. 12 (December 1, 2016): 67–72. Accessed June 23, 2024. https://jtec.utem.edu.my/jtec/article/view/1437.