資料安全

[NT 60487] Overview

[NT 60478] Works:	2 [NT 60520] works in 2 [NT 60521] publications in 1 [NT 60522] languages

[NT 60480] Titles

軟體加密原理與應用 [NT 59711] by: 飛天誠信 ([NT 1579] Language materials, printed)

IBM PC微電腦軟體加密/解密及反跟㶴實用技術 [NT 59711] by: 楊邁; 鄭自修; 李衛 ([NT 1579] Language materials, printed)