[1]
Prakobvorakan, B., Naowanondha, A. and Tanya, S. 2023. Development of the Instructional Model to Enhance Learning Happiness of Junior High School Students. Ratchaphruek Journal. 21, 1 (Mar. 2023), 137–151. DOI:https://doi.org/10.14456/rpjnrru.2023.10.