Sakina MWR, Sukiatni DS. The Role Of Shadow Teacher To Reduce Social Aggressiveness In Class 1 Students Elementary School: Peran ShadowTeacher Untuk Menurunkan Agresivita Sosisal Pada Siswa Kelas 1 Sekolah Dasar. icecrs [Internet]. 2020 Jun. 16 [cited 2025 Oct. 5];8. Available from: https://icecrs.umsida.ac.id/index.php/icecrs/article/view/426