I have a reference value that I'm looking to return the associated values into one cell but am not sure how to do that. For example, assume the reference value is MATH in worksheet 1 and in Worksheet 2 Math is associated with Geometry, Algebra, Statistics. I'd like to return both Geometry and Algebra in one cell in worksheet 1, and separate by commas.

**Worksheet 1**

A | B |

Math | Geometry, Algebra, Statistics |

<tbody>

</tbody>

**Worksheet 2**

Math | Geometry |

Math | Algebra |

Math | Statistics |

<tbody>

</tbody>

Thank you in advance!!