Salsabila, Indah, and Kifni Yudianto. 2023. “Analisis Pelanggaran Peraturan Tarif Batas Atas PT. Wings Abadi Airlines Station Kualanamu Sumatera Utara”. El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam 5 (2), 386-407. https://doi.org/10.47467/elmal.v5i2.3554.