Ritically assess the importance of the theologian Tertullian

In this essay you need to:
Give an account of how Tertullian develops a Latin vocabulary for
a) Trinitarian theology
Consider his understanding of
a)The doctrine of the church
b) Penitential discipline

Reading list:
Barnes, T.D. Tertullian, an Historical and Literary Study Behr, J. The Path to Nicaea
DA?nzl, F. A Brief History of the Doctrine of the Trinity
Edwards, M.J. Catholicity and Heresy in the Early Church
Kelly, J.N.D. Early Christian Doctrines
Osborn, E. Tertullian, first theologian of the West