Six Literal Days or Six Long Time Periods:  
What Do the Scriptures Teach

The Big Picture, by Ken Ham

Reformed Theology and Six Day Creation, by Dr. Kenneth L. Gentry

Six Literal Days of Creation, by Gary Nystrom

The "Days" of Creation in Genesis 1: ..., by Gerhard F. Hasel

The Six Days of Creation,  by Jimmy Akin

How Long Were the Days of Genesis, by Thomas Key

Can You Be an Old Earth Believer? by (?????) Answers in Creation

Six Day Creation, by Grover Gunn

Six Days?  Honestly!  Christian Answers.Net

Is the Bible clear about the age of the Earth and Universe?  Christian Answers.Net

Six Days of Creation, by (?????) ecclesia.org

Old Testament References to Creation after the Book of Genesis, by Lambert Dolphin

Augustine and Orthodoxy in the Creation Day Debate, by Louis Lavallee

Creation Passages: "In Six Days" and "Evening and Morning", by David E. Pratte