Eka Darmayanti, Ni Gusti Ayu Mirah, Kurniawan Nur Ramadhani, and Anditya Arifianto. “Deteksi Serangan Spoofing Pada Citra Wajah Menggunakan Ekstraksi Ciri Local Derivative Pattern”. Indonesian Journal on Computing (Indo-JC) 3, no. 1 (May 23, 2018): 55-64. Accessed April 19, 2021. https://socj.telkomuniversity.ac.id/ojs/index.php/indojc/article/view/213.