共 50 条
- [21] Costing and pricing in the digital age: A practical guide for information services. LIBRARY ACQUISITIONS-PRACTICE AND THEORY, 1998, 22 (02): : 239 - 240
- [22] INFORMATION DISSEMINATION BY SATELLITE: PROSPECTS FOR NEW SERVICES. Space communication and broadcasting, 1986, 4 (05): : 385 - 392
- [23] BATTERIES IN POWER SUPPLIES FOR THE NEW TELECOMMUNICATION SERVICES. Progress in Batteries & Solar Cells, 1987, 6 : 257 - 263
- [26] Costing and pricing in the digital age: A practical guide for information services. JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE, 1998, 49 (07): : 668 - 668
- [27] HUMAN RESOURCES IN BACK OFFICE E-LEARNING SERVICES. CURRENT TRENDS QUALITY AND EFFICIENCY IN E-LEARNING, VOL 1, 2013, : 432 - 435
- [30] INTEGRATED SERVICES DIGITAL NETWORK BRITISH TELECOMMUNICATIONS ENGINEERING, 1985, 3 (JAN): : 311 - 317