Teaching environmental literature : materials, methods, resources / edited, Frederick O. Waage
The Modern Language Association of America, 1985
 Buku Teks
Kahn, James R.
The economic approach to environmental and natural resources
Thomson, 2005
 Buku Teks
Geospatial techniques managing environmental resources
edited by Jay Krishna Thakur ... [and others]
Springer, 2011
 eBooks
Schmitt, Neal W.
Research methods in human resources management
South-Western Publishing, 1991
 Buku Teks
Handbook of health research methods: investigation, measurement and analysis
edited by Ann Bowling, Shah Ebrahim
Open University Press, 2007
 Buku Teks