@INBOOK {KANG: 1986a, title = {Effect of forest clearing on soil chemical properties and crop performance}, author = {Kang, B. and Juo, A. S. R. }, year = {1986}, type = {Land Clearing and Development in the Tropics edited by R. Lal, P.A. Sanchez and R.W. Cummings, Rotterdam, Balkema}, pages = {383--394}, }