(en-GB) Jonathan Watts, « Lawyer forced to flee Liberia hopes to return after Goldman prize win », The Guardian, (ISSN0261-3077, lire en ligne, consulté le )
(en) « Palm oil development leaves Liberians poorer, says winner of 'Green Nobel' », Reuters, (lire en ligne, consulté le )
theguardian.com
(en-GB) Jonathan Watts, « Lawyer forced to flee Liberia hopes to return after Goldman prize win », The Guardian, (ISSN0261-3077, lire en ligne, consulté le )