Topical Studies for Esther 2:21:
Ahasuerus {Nave's Topical Bible}
Bigthan {Nave's Topical Bible}
Hand {Nave's Topical Bible}
King {Forerunner Commentary}
King {Nave's Topical Bible}
Mordecai {Nave's Topical Bible}
On {Nave's Topical Bible}
Teresh {Nave's Topical Bible}
Kings {Torrey's Topical Textbook}