[1]
ทิพย์คำพ., วรรณไพศาลเ. and ทิพยมณฑลจ. 2019. PROBLEM - BASED LEARNING MANAGEMENT TO PROMOTE GOODCITIZENSHIP FOR SECONDARY SCHOOL STUDENTS. Journal of MCU Nakhondhat. 6, 7 (Sep. 2019), 3285-3298.