Asare, Van-Dycke Sarpong. “GPR Detection of Buried Steel Gas Cylinder; A Study Conducted in a Sandbox”. International Journal of Basic and Applied Sciences 2, no. 1 (December 14, 2012): 64–72. Accessed June 25, 2024. https://www.sciencepubco.com/index.php/ijbas/article/view/537.