เลิศพรประสพโชคธ., W. Satiennam, and T. Satiennam. “Effect of Vertical Deflections in Vehicle Speed: A Case Study from Khon Kaen University ”. The 28th National Convention on Civil Engineering, Vol. 28, July 2023, pp. TRL26-1, https://conference.thaince.org/index.php/ncce28/article/view/2102.