Aprillia, 081347087013. “Metode Bola Bergulir Untuk Analisis Perancangan Sistem Proteksi Petir Gedung Perkuliahan Institut Teknologi Kalimantan”. SPECTA Journal of Technology 6, no. 2 (August 30, 2022): 179–189. Accessed June 26, 2025. https://journal.itk.ac.id/index.php/sjt/article/view/661.