Duangchan N, Khampla N, Purkmee P. Development of analytical thinking skills in geography subjects of grade 8 students using a set of skill-enhancing activities together with learning management using the CIPPA model. dpssj [internet]. 2024 Apr. 29 [cited 2026 Oct. 3];3(1):82-97. available from: https://so08.tci-thaijo.org/index.php/dpssj/article/view/3172