Kurakaew, Nuanan, Watchara Srisakul, and Khwanchiwa Yongsata. 2022. “Utilization of Microsoft Excel Solver for Optimum Design of Gravity Dam”. Recent Science and Technology 14 (3). Songkhla, Thailand:731-42. https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/246845.