Rojas Berscia, Luis Miguel, e Rita Eloranta. “The Marañón-Huallaga Exchange Route: ’stones’ and ’grains’ As Counting Devices”. LIAMES: Línguas Indígenas Americanas, vol. 19, julho de 2019, p. e019011, doi:10.20396/liames.v19i0.8655449.