DIAGNOSIS OF CORONAVIRUS DISEASE 2019 (COVID-19) SURVEILLANCE USING C4.5 ALGORITHM: Diagnosis Penyakit Coronavirus 2019 (COVID-19) Surveillance Menggunakan Algoritma C4.5. Jurnal Pilar Nusa Mandiri, [S. l.], v. 16, n. 1, p. 71–80, 2020. DOI: 10.33480/pilar.v16i1.1293. Disponível em: https://ejournal.nusamandiri.ac.id/ejurnal/index.php/pilar/article/view/1293. Acesso em: 12 feb. 2026.