The MapBiomas data are public, open and free under Creative Commons CC-BY license and by referencing the source observing the following format:
MapBiomas – Collection [version] of the [annual / monthly] series of Maps of [Land Cover and Use/ Surface Water] of Colombia, accessed on [date] through the link: [LINK]”
Additionally, there are artículos científicos de MapBiomas that can be used for citation.