Nakhai L, Onthanee A. A Development of Learning Activities by Using Science, Technology, Society and Environment Approach to Promote Problem Solving Ability and Environmental Consciousness on Topic “Resource and Environment Conservation” for Grade 9 Students. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University [internet]. 2017 Feb. 6 [cited 2026 Sep. 14];11(2):174-89. available from: https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/69187