“Teacher Problems in Class III Thematic Learning During the Covid-19 Pandemic in Elementary Schools: Problematika Guru Dalam Pembelajaran Tematik Kelas III Pada Masa Pandemi Covid-19 di Sekolah Dasar” (2021) Academia Open, 4, p. 10.21070/acopen.4.2021.2752. doi:10.21070/acopen.4.2021.2752.