Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 WARDHANA, Indy Larasati; SUSANTO, Agus Dwi. HUBUNGAN TINGKAT PENGETAHUAN MAHASISWA UNIVERSITAS INDONESIA TERHADAP KEBIASAAN MEROKOK. Essential: Essence of Scientific Medical Journal, [S.l.], v. 18, n. 2, p. 5-10, feb. 2021. ISSN 2655-6472. Available at: <https://ojs.unud.ac.id/index.php/essential/article/view/53762>. Date accessed: 11 sep. 2026.