ชาตรีรังสีจ, ลึกสิงห์แก้วณ, สิริเขตไ. Development of Academic Achievement Using Powerpoint Teaching Aids on General Knowledge About Sufficiency Economy Level 3 Ban Pong School, Ban Pong Subdistrict, Hang Dong District, Chiang Mai Province. JEM [Internet]. 14Mar.2023 [cited 23Nov.2024];1(2). Available from: https://firstojs.com/index.php/JEM/article/view/1178