You can always be growing in your knowledge of missions from the Bible. Start with Scripture and the articles on the Biblical basis for Missions here at Propempo and keep working through them as you read the Bible from Genesis to Revelation.
You could study books along with the Scriptures, such as:
Let the Nations Be Glad, by John Piper
A Vision for Missions, by Tom Wells
The Great Omission, by Robertson McQuilkin
Perspectives on the World Christian Movement, edited by Ralph Winter and Steve Hawthorne
(This book is a text-book of many articles on missions issues and is also a course that runs about 15 weeks, that is offered in local churches all over the world. Visit the Perspectives web-site to find a course near you.