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Headway: 15-Min Book Summaries
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Circle - Groceries in minutes
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Idea
BernardoApp
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Golden idea
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Audible (オーディブル)
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Next Big Idea – Books in 15min
Next Big Idea Club
Bookey: 英語の読書、オーディオブック
Ideas Network
Amazon Kindle: 電子書籍、マンガ、雑誌
Amazon Mobile LLC