CLASSIFICATION OF BLOOD DONOR DATA USING C4.5 AND K-NEAREST NEIGHBOR METHODS (CASE STUDY: UTD PMI BALI PROVINCE). pilar [Internet]. 2022 Mar. 9 [cited 2026 Feb. 11];18(1):9-16. Available from: https://ejournal.nusamandiri.ac.id/index.php/pilar/article/view/2790