Setiawan, Andreas, Gede Bayu Suparta, Mitrayana Mitrayana, and Waskito Nugroho. “Subsurface Corrosion Imaging System Based on LASER Generated Acoustic (LGA)”. International Journal on Advanced Science, Engineering and Information Technology 7, no. 6 (December 28, 2017): 2189–2196. Accessed July 22, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/2816.