Hello Promita,
Welcome to the SCBCD forum.
Yes, HFEJB book is good for the SCBCD prep and used by most of the ranchers here.
Mikalai's tutorial and
ejbcertificate site are two another rpopular resources.
we also maintain a
links page at the top of the forum main page.
You can use the search for such common queries. You will get a lot more information.
HTH
Regards,
Leena