เพ็ชรอินทร์ ป. The Development of Academic Achievement in Social Studies Subjects in Various Regions in Asia of Mathayom Suksa 1 StudentsUsing a 5 - Step Quest for Knowledge (5E). edunsruj [internet]. 2021 Apr. 29 [cited 2026 Oct. 8];4(1):ึ71-80. available from: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/253819