Dita Azizah, Ahmad Rais Ruli and Nanang Lidwan 2026. Classification Of Customer Satisfaction Levels For Tring Application Services At Pegadaian Syariah Using The C4.5 Algorithm. International Journal of Health Engineering and Technology. 5, 4 (Nov. 2026). DOI:https://doi.org/10.55227/ijhet.v5i4.1159.