Smart contract research for efficient learner problem recommendation in online education environment (온라인 교육 환경에서 효율적 학습자 문제추천을 위한 스마트 컨트랙트 연구)
-
- The Journal of the Institute of Internet, Broadcasting and Communication
- /
- v.22 no.4
- /
- pp.195-201
- /
- 2022