Ekojono, Faisal Rahutomo, and Dhiana Novita Sari. “Implementasi Library Deep Learning Keras Pada Sistem Ujian Essay Online”. Jurnal Informatika Polinema 6, no. 2 (February 29, 2020): 73–79. Accessed October 9, 2025. https://jurnal.polinema.ac.id/index.php/jip/article/view/2559.