Bí mật làm email marketing mà các ‘chuyên gia’ không muốn chia sẻ

Note: The original video is owned by Neil Patel. I found it very meaningful, so I spent a great deal of time and effort translating it into Vietnamese for viewers in Vietnam—especially my friends who do not speak English or are not fluent in it. If there are any copyright concerns, please contact me at aideskien@gmail.com, and I will remove the video.

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