Wikky Fawwaz Al Maki, et al. “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. 1456-63, https://doi.org/10.29207/resti.v7i6.4839.