S. Simatupang, E. Dharma, M. H. Ambarita, N. Butarbutar, and A. Sudirman, “Determinants of Innovative Work Behaviorof MSME Employees during the Covid-19 Pandemic in Pematangsiantar City”, valid, vol. 20, no. 1, pp. 54–63, Dec. 2022.