P. Nakaray, L. Kaewseenual, S. Promma, S. Pantarak, P. Buangam, and P. Srirat, “ROUTE DEVELOPMENT AND LEARNING CITY TOURISM ACTIVITIES CULTURAL HERITAGE, NAKHON SI THAMMARAT”, PNRU JHSS, vol. 18, no. 2, pp. 310–326, Dec. 2023.