MapBiomas Bolivia data are public and free, you can make use of them by simply referring to the source with the following format: 

"MapBiomas Bolivia Project - Collection [number] of the Annual Land Cover and Land Use Series for Bolivia, acquired [date] through the link: [LINK]" 

"MapBiomas Bolivia Project - is an initiative of the Friends of Nature Foundation (FAN) with the multi-institutional co-creation of RAISG to generate annual cover and land use maps from automatic classification processes applied to satellite images." The full description of the project can be found at https://bolivia.mapbiomas.org/