An ancient 'YUPA' of Mulawarman,king of Kutai,early 5th century,eastern Borneo.siyajkak draw it referenced by Karasima,Noboru 2001,kodai・Chyusei Tounanazia ni okeru Bunkahatten to Indo-you Nettowaaku(The Cultural development of Southeast Asia and trade network with voyage of Indian Ocean in Ancient and Medieval age)Fig.5(photo),in Iwanami-koza Tounanazia-shi(Southeast Asian History),vol.1,Genshi Tounan Azia Sekai(Archic and Ancient history of Southeast Asia)ed.by Y.Ishii at.al.