"Contact Center Supervisor Complete Manual CMBOK3.0 Compliant Contact Center Certification Exam Official Textbook Supervisor Qualification Exam Scope" Japan Contact Center Education Certification Association Price: ¥4400 This is the latest compliant textbook for the Contact Center Certification (ConKen). There are minor scratches on the cover and a single stain on the edge of the book (see photo 4). However, there are no writings or folds on the inside pages. #ConKen_Textbook #CMBOK3.0 #CallCenter_Textbook #QualificationExam #JapanContactCenterEducationCertificationAssociation #Book #Electrical/Mechanical/ElectronicCommunication *Because this item is also listed on other flea market sites, in the unlikely event of duplicate purchases, the purchase made earlier in time will be prioritized. Thank you for your understanding.