I have done SCWCD certification recently and wanted to do Web Services Certification. I just want to know which book I should refer to.
Thanks in advance.
This questions has been asked many-many times already here.
1) There is NO single study guide book for SCDJWS like K&B for SCJP or HF S&JSP for SCWCD.
2) Please, look at the links page for the study sources to refer.
3) Use search on this forum for preparation experience of other beginners.