少年新知2021年 第一、二、四、五、六期（5本合售）3本未拆封

Introduction to Mathematical Logic ¥260.00

mathematical logic ¥245.00

Prime Numbers and computer methods for factorization ¥400.00

Decrypted Secrets Methods and Maxims of Cryptology Third,Revised and Updated Edition ¥100.00

algebraic specification ¥180.00

THEORY OF CODES ¥245.00

Hacker's Delight ¥220.00

矩阵的半张量积：理论与应用（第2版） ¥20.00

Computer Network Security：Theory And Practice（英文版） ¥10.00