Songrit Puttala และผู้แต่งคนอื่นๆ. (2023) Mathematical Model of Single Piles Embedded in Clay and Sand Layers Compared with the Dynamic Load Test. <i>RMUTL Engineering Journal</i>, <i>8</i>(1), 21-29.Songrit Puttala และผู้แต่งคนอื่นๆ. "Mathematical Model of Single Piles Embedded in Clay and Sand Layers Compared with the Dynamic Load Test". RMUTL Engineering Journal 8 (2023):21-29.Songrit Puttala และผู้แต่งคนอื่นๆ. Mathematical Model of Single Piles Embedded in Clay and Sand Layers Compared with the Dynamic Load Test. Rajamangala University of Technology Lanna:ม.ป.ท. 2023.