@book{16112,
	author = {Hoekstra, Dirk A. and Consejo Internacional para Investigación en Agrosilvicultura.},
	title = {An ex-ante economic analysis of proposed mixed and zonal agroforestry systems for the Batu Arang forest reserve, malaysia},
	publisher = {International council for Research in Agroforestry,},
	year = {1984},
	series = {Working paper},
	address = {Nairobi :}
}