1. Centre for Geodesy and Geodynamics (CGG). Preliminary report on geohazard map of Nigeria, 2007, pp 1-108
2. Carter, J. D, Barber, W and Tait, E.A. The geology of parts of Adamawa, Bauchi and Bornu provinces in northeastern Nigeria. Geological Survey of Nigeria Bulletin No. 30, 1963.
3. Schoeneich, K. and Ugodulunwa, F.X.O., 1994, April. Guide book on the field trip to Panyam Volcanoes. 30th Annual Conference of Nigerian Mining and Geosciences Society, Jos, Plateau State, pp 18.
4. Lar, U. A. and Usman A. M. Environmental distribution of trace metals in the Biu Volcanic Province Nigeria: Exposure and associated human health problems. International Journal of Scientific & Engineering Research, 2012, 3(10), pp 1-16
5. Lar, U.A., Lekmang, I.C., Shuaibu, M.T., Mahmud, U.M. and Yakubu T.A. Volcanoes of Nigeria: A preliminary study. Paper presented at the 7th Conference on African Geology. Assiut, Egypt, 2013, April.