Lesmana, Geyge, I Nyoman Piarsa, & I Made Suwija Putra. " 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) [Online], 9.3 (2021): 200-212. Web. 29 Apr. 2024