カメルーン
Atanga, M.B.S., Van der Meerve, A.S., Shemamg, E.M., Suh, C.E., Kruger, W., Njome, M.S., & Asobo, N.E. (2013) ‘Volcanic Ash from the 1999 Eruption of Mount Cameroon Volcano: Characterization and Implications to Health Hazards’, African Journals Online, 8(2-3), 63-70.
