IT/Artificial intelligence Optim 모듈 san_deul 2020. 4. 22. 15:49 https://youtu.be/k8fTYJPd3_I https://youtu.be/_e-LFe_igno https://youtu.be/JXQT_vxqwIs 저작자표시 비영리 변경금지 (새창열림)