Help needed | can't find this ebook anywhere

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I have searched everywhere for these ebooks; anyone able to share them:
https://www.amazon.com/gp/offer-listing/...test-b2-20
https://www.amazon.com/gp/offer-listing/...test-b2-20
https://www.amazon.com/gp/offer-listing/...test-b2-20
 
any help would be highly appreciated

Thanks,