kawichai V, Mangkhang C, Dibyamandala J. CONCEPTUAL FRAMEWORK OF SPATIAL THINKING LEARNING MANAGEMENT IN GEOGRAPHY STRAND TO PROMOTE AWARENESS OF HIGHLANDS ENVIRONMENTAL CONSERVATION OF ELEMENTARY SCHOOL STUDENTS. JSBA [Internet]. 2021 Aug. 25 [cited 2024 May 18];6(8):178-92. Available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/248685