Ephraim Isaac

From Abraham to Obama

From Abraham to Obama

2015

The Ethiopian Orthodox Täwahïd

The Ethiopian Orthodox Täwahïdo Church

2012

Meḥḳarim be-Yahadut Teman

Meḥḳarim be-Yahadut Teman

1999

A new text-critical introduction to Maṣḥafa Berhan

1973

Ethiopia's problem of illitera

Ethiopia's problem of illiteracy

1964