Mariani, N.W.R. and Sudjana, I.M. 2023. Classification of tourism business certification institution auditors based on the decision tree algorithm C4.5: case study of LSUP XYZ. Jurnal Mantik. 7, 1 (May 2023), 112-123. DOI:https://doi.org/10.35335/mantik.v7i1.3647.