Erin Nur Putriani; Robiatul Adawiyah. Marketing Strategy Of Umrah Pilgrimage Travel Organizer (PPIU) PT. Nur Haramain Mulia Towards Competitive Advantage. HARAMAIN : Jurnal Manajemen Bisnis 2025, 5 (01), 01-09. https://doi.org/10.66931/jmb-166.