1991
“An Heirloom In The Garden: Antique Fruits And Flowers Are Popping Up All Over”. Newsweek 118 (2): 66.
. 1991. “Traditional Agroforestry Practices In Zimbabwe”. Agroforestry Systems 14 (2): 99-111. doi:10.1007/BF00045726. http://link.springer.com/article/10.1007/BF00045726.
. 1991. 1989
Household Food Security And Forestry: An Analysis Of Socio-Economic Issues. Rome: Food and Agriculture Organization of the United Nations. http://www.worldcat.org/oclc/21140813.
. 1989. 1983
“Change And Indigenous Agroforestry In East Kalimantan [Part Ii]”. Borneo Research Bulletin 15 (2): 70-87. http://www.borneoresearchcouncil.org/BRB%20PDF%20scans/BRB_1983_15_02.pdf.
. 1983. 1982
“Tree Gardening And Taungya On Java: Examples Of Agroforestry Techniques In The Humid Tropics”. Agroforestry Systems 1 (1): 53-70. doi:10.1007/BF00044329. https://doi.org/10.1007/BF00044329.
. 1982.