San, S., Atikno, W. and Suratno, S. (2020) “Analisis diskriminan faktor kecemasan karyawan menghadapi dampak Pandemi Covid-19: Kasus perusahaan manufacturing dan jasa survey”, Operations Excellence: Journal of Applied Industrial Engineering. Jakarta, Indonesia, 12(2), pp. 198–208. doi: 10.22441/oe.2020.v12.i2.006.