Lakas, Wechsawan. 2019. “Utilization of Waste Plastic Bags to Improve Stability of Para-Asphalt Concrete : A Case Study of the Entrance Road at Ao Nang Subdistrict Administration Organization, Krabi Province”. Asian Health, Science and Technology Reports 27 (2):11-20. https://doi.org/10.14456/nujst.2019.12.