Handayani, L. “Keuntungan, Kendala Dan Solusi Pembelajaran Online Selama Pandemi Covid-19 : Studi Ekploratif Di SMPN 3 Bae Kudus”. Journal of Industrial Engineering & Management Research, Vol. 1, no. 2, July 2020, pp. 15-23, doi:10.7777/jiemar.v1i2.36.