Tri Putri, Clara, Putri Febby Aulia, Yunita Aisyah, and Sari Bulan Hasibuan. 2022. “Class Management in Improving Achievement Student Learning”. Edumaspul: Jurnal Pendidikan 6 (1). https://jurnal.unimen.cloud/index.php/maspuljr/article/view/3065.