Cullon, V. G. 1968. The spirit world of the Bukidnon. Asian Folklore Studies 27. 17-25.
@article{cullon1968, author = {Cullon, V. G.}, journal = {Asian Folklore Studies}, number = {2}, pages = {17-25}, title = {The spirit world of the Bukidnon}, volume = {27}, year = {1968} }