Koch, M., Kehop, D. A., Kinminja, B., Sabak, M., Wavimbukie, G., Barrows, K. M., . . . Rai, P. P. (2015). An ethnobotanical survey of medicinal plants used in the East Sepik province of Papua New Guinea. J Ethnobiol Ethnomed.

Koch, Michael, Dickson Andrew Kehop, Boniface Kinminja, Malcolm Sabak, Graham Wavimbukie, Katherine M. Barrows, Teatulohi K. Matainaho, Louis R. Barrows, and Prem P. Rai. "An Ethnobotanical Survey of Medicinal Plants Used in the East Sepik Province of Papua New Guinea." J Ethnobiol Ethnomed 2015.

Koch, Michael, et al. "An Ethnobotanical Survey of Medicinal Plants Used in the East Sepik Province of Papua New Guinea." J Ethnobiol Ethnomed 2015.