Winasih, S. S. Y., M. Safeyah, and H. Prasetyo. “The Concept of State Defence on Spatial Planning Training and Education Of UPN ‘Veteran’ of East Java”. Nusantara Science and Technology Proceedings (April 19, 2019): 82–92. Accessed July 30, 2025. https://nstproceeding.com/index.php/nuscientech/article/view/87.