Sultan Ilhamsyah, Vindi Nurmala Dewi, Veronica Ruth Rohani Siburian, Indah Noviyanti. Strategi Jitu Blue Ocean Menciptakan Peluang Industri Pariwisata Tanpa Persaingan di Provinsi Bangka Belitung. optimal [Internet]. 2024 Jun. 30 [cited 2025 May 5];4(2):81-94. Available from: https://researchhub.id/index.php/optimal/article/view/3337