Tampubolon, S. O.; Sihombing , V. I. C.; Sirait , S. H.; Purba, Y. E. P. br; Damanik, K. S. br. SOCIALIZATION OF CLEAN AND HEALTHY LIVING BEHAVIOR (PHBS) EFFORTS TO INCREASE LEARNING ENTHUSIASM IN ELEMENTARY SCHOOL STUDENTS. MICJO 2025, 2, 2138-2144.