Şeyhülislam Sa'di Efendi'ye ait Amasya Beyazıt İl Halk Kütüphanesi 439 numarada kayıtlı Fetvâ Mecmuası'nın tahkik ve tahlili The analysis and verification on Sheikh al-islam Sadi Celebi Effendi's journal of Fatwas Which is the registered book with the number 439 in The Puplic Library of Amasya