Fajri, A. and Ningsih, D. (2022) “The Effect of Using Google Classroom Applications on Online Learning during the Covid-19 Pandemic on Cognitive Achievement in Class X Biology Learning at SMAN 2 Gunung Talang”, PAKAR Pendidikan, 20(1), pp. 89-98. doi: 10.24036/pakar.v20i1.256.