Putra, Yoga Akhmadi, Toni Toni, and Muizuddin Azka. 2025. “ANALISIS QUALITY OF SERVICE SISTEM IP-PBX YEASTAR S50 DAN 3CX DI AIRNAV CABANG PEKANBARU”. Jurnal Review Pendidikan Dan Pengajaran 8 (1):3315-27. https://doi.org/10.31004/jrpp.v8i1.43452.