Lesmana, G., Piarsa, I., & Putra, I. (2021). Identification of Baby's Feet Using Principal Component Analysis (PCA) Method Character Extraction with K-Nearest Neighbor (KNN) Classification in Matlab Application. Jurnal Ilmiah Merpati (Menara Penelitian Akademika Teknologi Informasi), 9(3), 200-212. doi:10.24843/JIM.2021.v09.i03.p02