Sulistiyanto, Suprapto, and Agus Sudarya. “Implementation of Bela Negara Strengthening Program and Maritime at NALA East Java State High School Malang”. Advances in Social Sciences Research Journal 9, no. 1 (January 30, 2022): 446–463. Accessed April 26, 2024. https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/11594.