Sakina, Mifta Wahyu Rafa, and Dwi Sarwindah Sukiatni. 2020. “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”. Proceedings of The ICECRS 8 (June). https://doi.org/10.21070/icecrs2020426.