Wikky Fawwaz Al Maki, Khaidir Mauladan, and Indra Bayu Muktyas. “Date Fruit Classification Using K-Nearest Neighbor With Principal Component Analysis and Binary Particle Swarm Optimization”. Jurnal RESTI (Rekayasa Sistem Dan Teknologi Informasi), Vol. 7, no. 6, Dec. 2023, pp. 1456 -3, doi:10.29207/resti.v7i6.4839.