정보과학과 기술 PDF 2021-6
http://www.dprkmedia.com.009911nz0067.erf.sbb.spk-berlin.de/Uploaded/Journal/2131/KPJ_80492.pdf
Information Science And Technology (dprkmedia) January 07, 2022
http://www.dprkmedia.com.009911nz0067.erf.sbb.spk-berlin.de/Uploaded/Journal/2131/KPJ_80492.pdf