Utomo, M. N., I. Ariska, S. R. Pratiwi, and K. Kaujan. “Strategies for Maintaining SMEs Performance During Covid-19 Pandemic”. International Journal of Social Science and Business, vol. 5, no. 1, Mar. 2021, pp. 34-43, https://ejournal.undiksha.ac.id/index.php/IJSSB/article/view/30613.