학위논문(박사) - 한국과학기술원 : 경영공학부, 2017.2,[iii, 78 p. :]
sales concentration▼asurvival analysis▼adownload service; streaming service; digital music industry; 매출 집중도▼a생존 분석▼a다운로드 서비스▼a스트리밍 서비스▼a디지털 음악 산업
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