Radianto, Sambari, AND 		Mahjudin, Mahjudin.
" Estimating Impact of  Covid 19 Outbreaks on Regional Economic's Development" <em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC)</em> [Online], Volume 1 Number 1 (29 March 2021)