na INLIS000000000001770 ind 0010-1224000185 Customer Relationship Management (CRM) Teori dan praktek berbasis open source I Putu Agus Eka Pratama Putu Agus Eka Pratama, I Bandung Informatika 2019 978-623-7131-18-2 658.8342 PUT c 658.8342 Perilaku Konsumen B000388/Mj/2024