Recovery time of the hotel and restaurant sector in Indonesia after COVID-19 crisis: a survival analysis. - Ray Sastri; Fanglin Li; Hafiz Muhammad Naveed; Arbi Setiyawan (Kybernetes, 2025)

Measuring the multiplier effect of regional tourism and its spatial distribution in Indonesia before and after the COVID-19. - Ray Sastri; Fanglin Li; Arbi Setiyawan; Anugerah Karta Monika (Kybernetes, 2025)