Ketdara Potha และ Duangchan Diowvilai. (2020) Development of Curriculum to Enhance Operational Skills in Landscape Paintings for Fine Arts Students. <i>Journal of Humanities and Social Sciences</i>, <i>39</i>(3), .52-66.Ketdara Potha และ Duangchan Diowvilai. "Development of Curriculum to Enhance Operational Skills in Landscape Paintings for Fine Arts Students". Journal of Humanities and Social Sciences 39 (2020):.52-66.Ketdara Potha และ Duangchan Diowvilai. Development of Curriculum to Enhance Operational Skills in Landscape Paintings for Fine Arts Students. mahasarakham university:ม.ป.ท. 2020.