Abdul-Razzak, Mohammad Ibrahim. “The Development of a New Rhombic Array in Electrical Resistivity Prospecting”. American Scientific Research Journal for Engineering, Technology, and Sciences 46, no. 1 (September 21, 2018): 229–246. Accessed May 3, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3624.