BUAMUL, J.; SAWANGBOON, T. A Development of Learning Activity based on Problem-Based Learning with Online Media to Promote Collaborative Problem-Solving Competency of Grade 11 students on Topic of Solutions. Ratchaphruek Journal, [S. l.], v. 21, n. 1, p. 121–136, 2023. DOI: 10.14456/rpjnrru.2023.9. Disponível em: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/262586. Acesso em: 26 aug. 2026.