Guohua Sun Books

Ren quan
Ren quan

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Fa xue ji chu li lun
Fa xue ji chu li lun

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Fa li xue
Fa li xue

By Jingwen Zhu, Guohua Sun

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Fa li xue
Fa li xue

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Makesi zhu yi fa li xue yan jiu
Makesi zhu yi fa li xue yan jiu

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Sun Guohua zi xuan ji.
Sun Guohua zi xuan ji.

By Guohua Sun

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Fa xue ji chu li lun
Fa xue ji chu li lun

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She hui zhu yi fa zhi lun
She hui zhu yi fa zhi lun

By Guohua Sun

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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