Im – og R. DEVELOPMENT OF INSTRUCTIONAL MODEL BASED ON THE PRINCIPLES OF HIS MAJESTY THE KING RAMA IX ON ACTIVE CITIZENSHIP. JSBA [internet]. 2021 Dec. 29 [cited 2026 Apr. 22];6(12):204-20. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/255315