Ida WIdaningrum, Indah Puji Astuti, Dyah Mustikasari, Khoiru Nurfitri, Rifqi Rahmatika Az-Zahra, Rhesma Intan Vidyastari, & 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), 68–77. https://doi.org/10.24002/ijis.v8i1.11032