Agustina R.T Sitompul; Debora Anjany Situmorang; Ibbie Falia; Elisabet Lumban Gaol; Riskana Natalia Br Bangun; Meigia Nidya Sari. Comparative Analysis After Business Combination of Company Performance at PT Bank Mandiri Persero Tbk. IJERFA 2025, 3.