Pakpahan, Fahrul Idris, et al. “THE EFFECT OF THE FREE EXPRESSION METHOD ON STUDENTS’ CREATIVITY IN CREATING ADVERTISING WaORKS IN SIXTH GRADE ELEMENTARY SCHOOL STUDENTS ”. Jurnal Keluarga Sehat Sejahtera, vol. 23, no. 1, June 2025, pp. 249-60, doi:10.24114/jkss.v23i1.68123.