Nugrahaningrum, R., & Wati, T. L. (2022). Teacher Implementation in the Mumtaz Smart Application during the Covid-19 Pandemic in Elementary Schools: Implementasi Guru dalam Aplikasi Mumtaz Smart dimasa Pandemi Covid-19 di Sekolah Dasar. Indonesian Journal of Education Methods Development, 17(4), 10.21070/ijemd.v20i.663. https://doi.org/10.21070/ijemd.v20i.663