[1]
W. Theppakan and ๋Jetsadawiroj S., “The compare students’ learning achievement on the Mathematics skill on percentage by using the learning on normal teaching of Matthayomsuksa 1 students at Navamindarajudis Khungthepmahanakhon school”, jomld, vol. 8, no. 5, pp. 81–91, May 2023.