Manvelyan, Gohar Makar Yekmalyan s Divine Liturgy : The implementation of Polyphony in Armenian / Sacred Music by Gohar Manvelyan; Ed. Lilit Yernjakyan - Holy Etchmiadzin : Mother see of Holy Etchmiadzin, 2021 - 100 p. not. 20 cm. ISBN: 978-9939-59-278-7 Subjects--Topical Terms: Spiritual music