[Koha] in which file is the term by

dear List, who can point the name(s) of the file(s) in which the term 'by' (being displayed before the author name) is present. I'm in charge for Armenian localisation, and direct translation of 'by' is not correct. The term should be replaced by spaces. So want to know the names, to remove Armenian translation of 'by' and replace with spaces. See attached files. Tigran