Efektifitas Penggunaan Whatsapp Sebagai Sarana Belajar Online Siswa di SMP Muhammadiyah Sewon
Oleh Sylvana Apriliani dan Dita Nuur Annisa Abstract WhatsApp is one of a famous application that used in Indonesia. It is an instant messaging application. The functions is same with SMS application. To be able access WhatsApp requires internet data. During pandemic Covid-19, WhatsApp can make easier to the students. The formulation of problem is […]

