Utami T, Wahyudi U. Peningkatan Kemampuan Anak Sekolah Dasar melalui Latihan Asertif untuk Menurunkan Bullying. JPM [Internet]. 28Mar.2022 [cited 28Dec.2025];4(1):93-00. Available from: http://jurnal.globalhealthsciencegroup.com/index.php/JPM/article/view/987