SU 17/22 Recce variants

I’m looking for any information on the recce variants of the Sukhoi SU 17/22. Please can anyone direct me to any resources where I can access this type of information ie books, web sites.
It is important for me to be able to research the recce variants at some reasonable depth…ie recce suites carried by the variants; development of suites, role, and mission with different airforces.
Can anyone recommend Yefim Gordons Aerofax book on this aircraft with reference to the above criteria?

Thank you in anticipation.