Lebnoo, Nucharee, Alisara Chomchuen, Supakan Buatip, and Supansa Suvanchatre. 2026. “Promoting Scientific Process Skills and Learning Achievement through Activity-Based Learning on the Topic ‘Changes in Substances’ among Grade 5 students”. Princess of Naradhiwas University Journal of Humanities and Social Sciences 13 (1):57-72. https://so05.tci-thaijo.org/index.php/pnuhuso/article/view/282043.