Entry record from Usup (1986b): Proto-Mongondow
Page number: 320
*kukulan
• device for making announcements to the public, made from a piece of bamboo that is hollowed out lengthwise and beaten with a piece of wood(eng).tetengkoran (alat pemanggil khalayak terbuat dari seruas bambu yang dilubangi membujur dan dipukul dengan sepotong kayu)(ind).