Lebnoo N, Chomchuen A, Buatip S, Suvanchatre S. Promoting Scientific Process Skills and Learning Achievement through Activity-Based Learning on the Topic “Changes in Substances” among Grade 5 students. pnujrhuso [internet]. 2026 Jan. 15 [cited 2026 Sep. 13];13(1):57-72. available from: https://so05.tci-thaijo.org/index.php/pnuhuso/article/view/282043