Siriwattano (Thatthasee), P.K. , Sukumal , D. , Suracitto, Dr., P.W. and biratano, P.J.A. 2021. THE PROBLEM-BASED LEARNING MANAGEMENT TO DEVELOP DESIRABLE CHARACTERISTICS OF JUNIOR HIGH SCHOOL STUDENTS OF SCHOOLS UNDER LOEI MUNICIPALITY, LOEI PROVINCE. Journal of Buddhist Education and Research. 7, 2 (Aug. 2021), 213–225.