Textual criticism and exegesis
Variant readings in passages concerning gender issues
The lexical form and introductory matters
Junia in early Christian writers
and beyond
The contracted-name theory
Junia/Junias in current Greek New Testaments
Junia/Junias in past editions of Nestle, Nestle-Aland, and UBS
The accentuation of Iounian in reference works
and the attendant cultural bias
Junia/Junias (Romans 16:7) in English
Andronicus and Junia as "outstanding among the apostles"
Conclusion: there was an apostle Junia.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Junia : the first woman apostle by Eldon Jay Epp. ISBN 0800637712. Published by Augsburg Fortress in 2005. Publication and catalogue information, links to buy online and reader comments.
