[1]
Silakate, W. and Naowanondha, A. 2022. A Study of Learning Achievement on Conserving Hometown Unit, Problem Solving Ability and Analytical Thinking Ability of Grade 6 Students Using Problems Based Learning. Ratchaphruek Journal. 20, 2 (Aug. 2022), 166–178. DOI:https://doi.org/10.14456/rpjnrru.2022.13.