Panjaitan, C. Y., Ni Nyoman Padmadewi, dan Kadek Sintya Dewi. “The Teachers’ Perception Toward the Use of Google Classroom in Online Learning on Junior High School”. Jurnal Ilmiah Pendidikan Profesi Guru, vol. 5, no. 2, Agustus 2022, hlm. 322-30, doi:10.23887/jippg.v5i2.51190.