1. Amoras, W. W. (1991) A garimpagem na Amazônia, doenças, desordem e descaso, uma visâo do garimpo do Crepori (PA). Masters Thesis, Universidade Federal do Pará, Belém, Brazil.
2. Smokestacks in the rainforest: industrial development and deforestation in the Amazon Basin;Anderson;World Development,1990
3. Small-scale mining and resource development;Bugnosen;Appropriate Technology,1990
4. Burkhalter, S. B. (1982) Amazon gold rush, markets and the Mundurucu Indians. PhD Thesis, Columbia University, New York.