94 元券9783659434716Homologicalinjectivityproperties￥6850去看看澜瑞图书专营店发布了预订 Homological properties of semigroups S and dense injectivity of S-acts [9783659434716]
![预订 Homological properties of semigroups S and dense injectivity of S-acts [9783659434716]](https://img.alicdn.com/bao/uploaded/i4/2107887916/O1CN01cxPsJ428LaMlqIGIC_!!4611686018427384108-0-item_pic.jpg_280x380xz.jpg)
