1. Princeton University, Islamic Manuscripts New Series no. 970 DS ID: DS14215 Title: Lemaat-i tassavuf-i Nakşibandiyye Author: Köstendilli Süleymân Şeyhi Place: Omurtag and Bulgaria Date: 1827
2. Princeton University, Islamic Manuscripts New Series no. 1658 DS ID: DS14216 Title: Diwan Place: Kyustendil and Bulgaria Date: 1848