Agriculture in the Coastal Amazonia of the Ucayali River. A productive but unprofitable area?

Labarta, R. A., White, D., Leguía, E., Guzmán, W., & Soto, J. (2007). Agriculture in the Coastal Amazonia of the Ucayali River. A productive but unprofitable area? Acta Amazonica, 37(2), 177–186. https://doi.org/10.1590/s0044-59672007000200002