Kerot, T., 		Deesamer, K., 		Sanonok, A., 		Baobuangoen, J., & 		Pornsing, C.
(2021).
 A Critical Study of Transportation Cost in Inland Road Transportation Business.
<em>Naresuan University Journal: Science And Technology (NUJST), 29</em>(4), 43-51.
doi:10.14456/nujst.2021.34