Kharel และ Shyam Prasad. (2006) Deterioration model for bituminous pavements of low-volume roads in Nepal /. Kasetsart University,:ม.ป.ท.Kharel และ Shyam Prasad. 2006. Deterioration model for bituminous pavements of low-volume roads in Nepal /. ม.ป.ท.:Kasetsart University,;Kharel และ Shyam Prasad. Deterioration model for bituminous pavements of low-volume roads in Nepal /. ม.ป.ท.:Kasetsart University, 2006. Print.