Sutirman, Sutirman, Nathaniela Oci Prasetiyadi, and Mar’atus Solikhah. 2024. “THE INFLUENCE OF USING E-LEARNING AND SELF-EFFICACY ON STUDENTS’ LEARNING ACHIEVEMENT IN THE COVID-19 PANDEMIC”. Efisiensi : Kajian Ilmu Administrasi 21 (2):131-50. https://doi.org/10.21831/efisiensi.v21i2.77038.