This is the 13444th most frequent Turkish word.
konulduğu
"Konulduğu" means "the place or condition where it was put/placed."
The word "konuldu" is used here as a past passive verb form, indicating that the books were placed (action done subjectively by someone else).
Kutuphanedeki kitaplar raflara düzenli bir şekilde konuldu.
The books in the library were placed on the shelves in an orderly manner.
In this sentence, "konuldu" once again is a passive past tense verb, referring to the act of placing the magazines that occurred without directly referencing who performed the action.
Çalışma masasında birkaç yeni dergi konuldu.
A few new magazines were placed on the work desk.
Here, "konuldu" signifies the past passive action of placing documents, emphasizing the careful manner in which it was done.