A Discussion on the Multiple Pricing Strategies of Information Goods--With the Example of 263 Mail
Song Enmei
Library and Information Service ›› 2004, Vol. 48 ›› Issue (12) : 98-101.
A Discussion on the Multiple Pricing Strategies of Information Goods--With the Example of 263 Mail
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
〈 | 〉 |