Best RNC-OB study guide

Hello,

I've been working in L&D for 1 1/2 years and I have been looking in to getting my RNC-OB. I know you have to have 2 years of experience but I'm wanting to get a good study guide just to start studying and further my education and understanding of disease processes and treatments. I didn't know if anyone could recommend a good study guide for this certification. I've read good things about the "Inpatient Obstetric Nurse Exam Secrets Study Guide" book but wanted either confirmation or suggestions!


Any help would be great!
Alexandra