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The Socio-Economic Impacts of Ebola in Sierra Leone : Results from a High Frequency Cell Phone Survey, Round 3
关键词:
PHONE
年份:
2015
摘要:
s where cell phone coverage is highest, but including rural areas as much as possible given the sample available.
Burkina Faso's Infrastructure : A Continental Perspective
关键词:
CELL-PHONE
年份:
2011
摘要:
) cell-phone signal. The expansion of safe water and sanitation technologies in urban areas since the late 1990s
Photovoltaics for Community Service Facilities : Guidance for Sustainability
关键词:
CELL-PHONE
年份:
2010
摘要:
; the national grid, photovoltaic's (PV) systems may offer the most practical and least-cost way to access electricity

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