Roberts-Phelps, G. (2004). Customer relationship management: How to turn a good business into a great one.
শিকাগো স্টাইলে সাইটেশনRoberts-Phelps, Graham. Customer Relationship Management: How to Turn a Good Business into a Great One. Viva Books Pvt. Ltd., New Delhi, 2004.
এমএলএ সাইটেশনRoberts-Phelps, Graham. Customer Relationship Management: How to Turn a Good Business into a Great One. 2004.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.