James E. Walters (eds.), "Hymn 20 on Nisibis" in last modified May 16, 2018, http://syriaca.org/work/8756 Hymn 20 on Nisibis H. Nis. 20 Madrasha 20 on Nisibis Ephrem — ܐܦܪܝܡ http://syriaca.org/work/8756 Digital Syriac Corpus Hymn 20 on Nisibis part 20