Bell, Simon
Design for outdoor recreation
Taylor and Francis, 2008
Buku Teks SO
Butler, George D.
Recreation areas, their design and equipment, prepared for National Recreation Association
A.S. Barnes, 1947
Buku Teks
Trasar-Cepeda, Carmen, editor
Soil enzymology in the recycling of organic wastes and environmental restoration
Springer, 2012
eBooks
Maribeth Erb
Ecotourism and environmental conservation in western flores: who benefits? / Maribeth Erb
2001
Artikel Jurnal
Maribeth Erb
Ecotourism and environmental conservation in western flores: who benefits? / Maribeth Erb
2001
Artikel Jurnal