sugiarni rani. PENERAPAN MEDIA AJAR DIGITAL BERBASIS 4C ( COMMUNICATION, COLLABORATION, CRITICAL THINKING AND PROBLEM SOLVING, DAN CREATIVITY AND INNOVATION) DALAM MENGHADAPI REVOLUSI INDUSTRI 4.0 DI KALANGAN GURU YAYASAN MANDIRI BERSEMI. QH [Internet]. 2019 Oct. 28 [cited 2024 May 6];5(2):83-9. Available from: https://ojs.unida.ac.id/QH/article/view/1926