Bulowok
Bulowok *bird whistle of the Kayan of Borneo, without fingerholes, frequently beaked (173). Sachs, Curt. Die Musikinstrumente Indiens und Indonesiens. Berlin, 1915.
Bulowok *bird whistle of the Kayan of Borneo, without fingerholes, frequently beaked (173). Sachs, Curt. Die Musikinstrumente Indiens und Indonesiens. Berlin, 1915.