Ida WIdaningrum, Indah Puji Astuti, Dyah Mustikasari, Khoiru Nurfitri, Rifqi Rahmatika Az-Zahra, Rhesma Intan Vidyastari and Ali Selamat 2025. Recognition of the Lima Pandawa Shadow Puppet characters utilizing Principal Component Analysis (PCA) for feature extraction and K-Nearest Neighbor (KNN) for classification. Indonesian Journal of Information Systems. 8, 1 (Aug. 2025), 68–77. DOI:https://doi.org/10.24002/ijis.v8i1.11032.