In the space of six days : The days of creation from Origen to the Westminster AssemblyLETHAM, R.The Westminster theological journal. 1999, Vol 61, Num 2, pp 149-174, issn 0043-4388Article

The Foedus Operum: Some Factors Accounting For its DevelopmentLETHAM, R.Sixteenth (The) Century Journal Kirksville, Mo. 1983, Vol 14, Num 4, pp 457-467Article

Amandus Polanus : A Neglected Theologian?LETHAM, R.The Sixteenth century journal. 1990, Vol 21, Num 3, pp 463-476, issn 0361-0160Article