Jun 29, 2018· The formalization of artisanal and small-scale gold mining in Colombia and its contribution to the Sustainable Development Goals. by Paula Stella | Jun 29, ...
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...