Siti Diana Putri, Taufik R. PERAN MANAJEMEN DALAM MENDUKUNG EFEKTIVITAS KEGIATAN OPERASIONAL DIVISI ADMINISTRASI PT PLN INDONESIA POWER SERVICES UBP SURALAYA . journal.of.innovation.economic.and.business [Internet]. 2026 Apr. 30 [cited 2026 May 17];2(1):23-35. Available from: https://langkahbersama.id/index.php/jieb/article/view/49