Gospel Principles Chapter 4: Freedom to Choose
"Agency: Essential to the Plan of Life" by Elder Robert D. Hales (Quorum of the 12)- Defines agency and how we can use our agency to come unto Jesus Christ.
"The Three R's of Choice" by President Thomas S. Monson (President of the Church)- Discusses the Right of choice, the Responsibility of choice, and the Results of choice.
"To Act for Ourselves: The Gift and Blessings of Agency" by Elder Robert D. Hales (of the 12)- I like how he uses Lehi's dream to discuss agency. As we use our agency righteously, more light can come and we are happy. We can also reclaim our agency when we choose poorly. Recommends choices to make now.
"Moral Agency" by Elder D. Todd Christofferson (of the 12)- 3 elements of agency are alternatives, knowing the alternatives, and the freedom to choose. Talks about Jesus Christ's role in our agency and gives some of His examples to follow.
"Atonement, Agency, Accountability" by President Boyd K. Packer (Elder at the time, Quorum of the 12)- Agency given to man without the atonement would have been fatal. The importance of agency.