Xeraph@NCHOVY

 1 of: Information Retrieval: Algorithms and Heuristics (The Information Retrieval Series)(2nd Edition) [Paperback]
By: David A. Grossman (Author), Ophir Frieder (Author)
Sold by: Amazon.com, LLC
    $25.48
 
1 of: Managing Gigabytes: Compressing and Indexing Documents and Images (The Morgan Kaufmann Series in Multimedia Information and Systems) [Hardcover]
By: Ian H. Witten (Author), et al
Sold by: Amazon.com, LLC
    $46.96

왜 2주나 지났는데 안 오나 확인해봤더니 카드 결제 에러-_-;;;
결국 추가로 지르고 같이 결제 (...);;;;