The Orthodox Church and Ecumenism, Archimandrite Justin Popovich
https://www.reissinstitute.org/wp-content/uploads/2019/03/St-Justin-Popovich-The-Orthodox-Church-and-Ecumenism.pdf

Notes on Ecumenism, Saint Justin Popovich
https://sebastianpress.org/notes-on-ecumenism/

Entering the Orthodox Church, Met. of Nafpaktos Hierotheos

https://www.pelagia.org/entering-the-orthodox-church.en.aspx

 

Illness and Cure of the Soul in the Orthodox Tradition, Met. Of Nafpaktos Hierotheos

https://www.pelagia.org/illness-and-cure-of-the-soul-in-the-orthodox-tradition.en.aspx

 

Orthodox Psychotherapy, Met. of Nafpaktos Hierotheos

https://www.pelagia.org/orthodox-psychotherapy.en.aspx

 

The Science of Spiritual Medicine,Met. of Nafpaktos Hierotheos

https://www.pelagia.org/the-science-of-spiritual-medicine.en.aspx

 

Empirical Dogmatics of the Orthodox Catholic Church according to the spoken teaching of Father John Romanides, Volume 1: Dogma-Ethics-Revelation, Met. of Nafpaktos Hierotheos

https://www.pelagia.org/empirical-dogmatics-volume-1.en.aspx

 

Empirical Dogmatics according to the spoken teaching of Father John Romanides, Volume 2: Holy Trinity - Creation - Fall - Incarnation - Church - Life after Death, Met. of Nafpaktos Hierotheos

https://www.pelagia.org/empirical-dogmatics-volume-2.en.aspx

 

I Confess One Baptism, Fr. George Metallinos

https://oodegr.com/english/biblia/baptisma1/perieh.htm 

Patristic Theology: The Univeristy Lectures of Fr. John Romanides

https://uncutmountainpress.com/shop/product/patristic-theology/