M. E. Andolo, H. B. Agtriadi, and M. N. I. Susanti, “Classification of Magnetic Resonance Imaging (MRI) Images of Brain Tumors Using Convolutional Neural Network (CNN) Methods with VGG-16 and Xception Architectures”, E-Komtek, vol. 10, no. 1, pp. 87-96, Jun. 2026.