Sihite, Mislan, Supriyanto Supriyanto, Dany Perdana Sitompul, Doli Muhammad Jafar Dalimunthe, Handy Octavianus, Taslim Taslim, Ami Dilham, Rizki Christian Sipayung, and Ritha F. Dalimunthe. 2021. “Online Lectures During the COVID-19 Pandemic : Conceptual Analysis”. International Journal of Business, Economics & Management 4 (1):256-61. https://doi.org/10.31295/ijbem.v4n1.1480.