1.
Khawtong S. Effects of the Development of Science Learning Activities Package by Using STEM Education to Enhance the Problem Solving Ability for Grade 6 Students. edurmu [internet]. 2021 Mar. 8 [cited 2026 Sep. 14];18(1):133-45. available from: https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/251569