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 Adhyatmanta, M., Alit Suryawati, I., & Amanda Gelgel, N. (2019). Efektivitas Kampanye Cegah Penggunaan Narkoba Badan Narkotika Nasional (BNN) di Media Sosial Instagram Terhadap Sikap Pelajar SMA PGRI 2 Denpasar. E-Jurnal Medium, 1(1). Retrieved from https://ojs.unud.ac.id/index.php/komunikasi/article/view/50819