Tata Heru Prabawa. Green Branding and Maritime Service Marketing: How Environmental Certification Shapes Customer Loyalty and Competitive Positioning Among Global Shipping Companies. MANABIS: Jurnal Manajemen dan Bisnis [Internet]. 2026 Jun. 15 [cited 2026 Jul. 11];5(2):400-7. Available from: https://www.journal.yp3a.org/index.php/manabis/article/view/7276