Wulandari, R. A. ., Nadiroh, N. and Sumargo, B. (2022) “THE EFFECT OF COGNITIVE FLEXIBILITY ON IMPROVING CLEAN AND HEALTHY LIVING BEHAVIOR IN ELEMENTARY SCHOOL STUDENTS”, Jurnal Pensil : Pendidikan Teknik Sipil, 11(3), pp. 282–292. doi: 10.21009/jpensil.v11i3.28426.