Alianto, Alianto, R Hasan, and Irwandi Irwandi. 2021. “Perbedaan Hasil Belajar Kognitif Siswa Pada Pembelajaran Daring Melalui Google Classroom Dan Whatsapp Mesenger Di SMP Negeri 4 Bengkulu Tengah: (Differences in Student Cognitive Learning Outcomes in Online Learning Through Google Classroom and Whatsapp Messenger at SMP Negeri 4 Bengkulu Tengah)”. BIODIK 7 (4):10-17. https://doi.org/10.22437/bio.v7i4.13565.