YALÇINKAYA, Mehmet Alaaddin2019-04-252019-04-251019-469Xhttp://hdl.handle.net/20.500.12575/64090MAHMUD RAİF EFENDI AS THE CHIEF SECRETARY OF YUSUG AGAH EFENDI, THE FIRST PERMANENT OTTOMAN-TURKISH AMBASSADOR TO LONDON (1793-1797)385434