Reski Amalia, N.I. and Sari, J.Y. 2019. expressions. Mengidentifikasi Mood Mahasiswa Berdasarkan Ekspresi Wajah dengan Menggunakan Discrete Wavelet Transform dan Fuzzy K-Nearest Neighbor: identification of student expressions. Ultima Computing : Jurnal Sistem Komputer. 11, 1 (Aug. 2019), 34–38. DOI:https://doi.org/10.31937/sk.v11i1.1072.