Hermawan, Adam, Ratih Hurriyati, Heny Hendrayati, and Mokh Adib Sultan. “Implementation of Blue Ocean Strategy in Facing Business Competition: A Startup Case Study of Lapangbola.Com”. Jurnal Manajemen Bisnis 15, no. 1 (March 12, 2024): 1–12. Accessed May 14, 2025. https://journal.umy.ac.id/index.php/mb/article/view/20486.