Found 3 books 
[en] Engineering Long-Lasting Software · an Agile Approach Using SaaS and Cloud Computing, Alpha Edition Strawberry Canyon LLC
![[Addison-Wesley Professional Ruby Series 01] • Engineering Software as a Service · an Agile Approach Using Cloud Computing](/cover/B02yXa4iBjprGDsd/small/[Addison-Wesley%20Professional%20Ruby%20Series%2001]%20%e2%80%a2%20Engineering%20Software%20as%20a%20Service%20%c2%b7%20an%20Agile%20Approach%20Using%20Cloud%20Computing.jpg)
[en] [Addison-Wesley Professional Ruby Series 01] • Engineering Software as a Service · an Agile Approach Using Cloud Computing Addison-Wesley Professional
[en] Engineering Long-Lasting Software · An Agile Approach Using SaaS and Cloud Computing, Beta Edition Oxford University Press