5Stevenson C assisted by Xavery P &Wendeline A. Market production and vegetables in the peri-urban area of Dares Salaam, Tanzania. Dar es Salaam.. UVPP, Ministry of Agriculture and Co-operatives/ GTZ, 1996.
6Losada H, Martinez H, Vieyra J, et al. Urban agricul- ture in the metropolitan zone of Mexico:changes over time in urban,suburban and periurban areas [J]. En- viromnent and Urbanization, 1998,10(2) .. 37-54.
7Mwamfupe. The changing nature of the peri-urban zone in Africa: Evidence from Dares Salaam, Tanzania [J]. Scottish Geographical Journal, 1999, 115 ( 4 ) .. 269-282.
