전기, 자동화공학 PDF 2022-1
http://www.dprkmedia.com.00991137000a.erf.sbb.spk-berlin.de/Uploaded/Journal/2128/KPJ_80945.pdf
Electrical, Automation Engineering (dprkmedia) March 12, 2022
http://www.dprkmedia.com.00991137000a.erf.sbb.spk-berlin.de/Uploaded/Journal/2128/KPJ_80945.pdf