Khotimah, Khusnul. “Wujud Bela Negara Melalui Pendidikan Budaya Hemat Energi”. Jurnal Pertahanan dan Bela Negara 7, no. 3 (December 18, 2017): 51–66. Accessed July 23, 2026. https://upgradeojs.rifqisyams.id/index.php/JPBH/article/view/230.