In what year was the album “Secret Garden” released by Apink?

In what year was the album “Secret Garden” released by Apink?: The album “Secret Garden” was released in 2013 by Apink, featuring 6 tracks.
What is the most successful song from the album “Secret Garden” by Apink?: “NoNoNo” is the biggest hit from the album “Secret Garden” by Apink.

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