1. Afifiyah, S. (2020). Jenis Usaha yang Justru Melejit Saat Wabah Covid-19. https://www.tagar.id/jenis-usaha-yang-justru-melejit-saat-wabah-covid19
2. AKATIGA, & the Asia Foundation. (1999). The impact of economic crisis on Indonesian small and medium enterprises. The United States Agency for International Development.
3. Anwar, K. (2020). 10.238 UMKM di Kota Serang Terdampak Wabah COVID-19. https://banten.idntimes.com/business/economy/khaerul-anwar-2/10238-umkm-di-kota-serang-terdampak-wabah-covid
4. Asian Development Bank. (2020). The Economic Impact of the COVID-19 Outbreak on Developing Asia. ADB Briefs.
5. Bauer, Armin and Thant, M. (2010). Poverty and Sustainable Development in Asia.