THE RELATIONSHIP BETWEEN EXPOSURE TO SECONDHAND SMOKE IN ENCLOSED SPACES AND SMOKING BEHAVIOR AMONG THE ELDERLY IN INDONESIA: HUBUNGAN PAPARAN ASAP ROKOK PASIF DI RUANG TERTUTUP DENGAN PERILAKU MEROKOK PADA LANSIA DI INDONESIA. JKHWS. 2026;14(1):77-88. doi:10.47794/jkhws.v14i1.90