(wongpunga), P. P. C. .; Phra Soponphattanabundit; Phrakhru Sudhikhambhirayan. AN APPROACH OF TRAINING ACTIVITY APPLICATION TO PROMOTE VIRTUE AND ETHICS FOR SECONDARY SCHOOL STUDENTS OF KANLAYANAWAT SCHOOL KHON KAEN PROVINCE. JBER 2020, 6, 132-147.