Murphy, Lawrence R., author
Healthy and productive work: an international perspective
Taylor and Francis, 2000
 Buku Teks
Abruzzi, Adam, author
Work measurement, new principles and procedures
Columbia University Press, 1953
 Buku Teks
Walker, Eric, author
ABC of healthy travel
BMJ, 1993
 Buku Teks SO
The Rights to a healthy environmental : international law perspective
 Artikel Jurnal
Mas Achmad Santosa, author
The right to healthy environment: international law perspective
2005
 Artikel Jurnal
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