Furqorina, Rizka, and Mohammad Iqbal Firdaus. “Achievement of BLU Financial Performance in the Field of Education Services before and During the COVID-19 Pandemic”. Jurnal Mantik 7, no. 2 (August 30, 2023): 1148-1155. Accessed April 21, 2026. https://iocscience.org/ejournal/index.php/mantik/article/view/4022.