The first sources on the inhabitants of the Uaçá go back to the XVIIth Century. According to the information compiled by the Baron of the Rio Branco, in his diplomatic work "Border Disputes" (Paranhos 1945, VI: 101), the Englishmen Keymis, Tatoon and Harcourt passed through the region of the Watz (Uaçá) and Arcooa/Arracow (Urukauá) rivers and published reports in 1608 and 1613, in which they mention the presence of Charibe, Morrowinne, Wiapocoorie and Yao Indians in that region.

On the XVIIIth Century, some information on the inhabitants of the Uaçá River basin can be found in the studies by Hurault (1972) and Coudreau (1893). The information in these documents deal principally with the migrations of various ethnic groups, notably the Aruã migration, and the activities of the Jesuits and their intentions to establish missions in the region of the Uaçá. In this regard, the letters of Fathers Fauque and Lombard are primary sources, organized in the "Lettres edifiantes et curieuses (1700-83)". Studies on the documents of this time may be found in the articles by Lombard (1928) and Froidevaux (1901).

In the XIXth Century, the scientific travellers Léprieur and Coudreau passed through the region and their works are two of the rare sources on the inhabitants of the Uaçá basin in this period.

In the 20^th Century, sources on the Indians of the Uaçá multiply, among which we find government reports, anthropological and linguistic researches. Included among the reports of government commissions and agencies, there are those of the Border Inspection Commission of the War Ministry, which passed through the region in 1927 led by General Rondon and the report by Luís Thomaz Reis, who also passed through the region as Border Inspector in 1936. J.Malcher utilizes data compiled during the time in which the SPI was present among the Indians, data obtained by him and by the Inspector of the Indians Eurico Fernandes, and organized an entry on the Galibi published in the volume "Índios do Brasil: das cabeceiras do Rio Xingu, dos Rios Araguaya e Oiapoque" [Indians of Brazil: from the headwaters of the Xingu River, the Araguaya and Oiapoque], edited by Rondon. From the 1970s on, Frederico de Oliveira began working among the Galibi of the Uaçá as head of the FUNAI post, accumulating a rich documentary archive on the Indians of the region and the activities of the indigenist agency. This archive was recently organized and restored and is now being used as a source of studies by researchers of the region.

In terms of works of an anthropological nature, Curt Nimuendajú wrote on the "Indians of the Uaçá" in his work on "the Palikur and their neighbors". The anthropological texts that were produced afterwards on the Galibi-Marworno, focused primarily on the activities of governmental agencies. This is the case of the article by Expedito Arnaud (1969) titled "os índios da região do Uaçá e a proteção oficial brasileira" [The Indians of the region of the Uaçá and official Brazilian protection] and the Master’s thesis by Assis (1980) on school education among the Indians of the Uaçá. Arnaud and Assis also wrote articles on shamanism and environmental questions, respectively, in which they deal with the Galibi-Marworno population together with the other indigenous peoples of the Oiapoque.

From the 1990s on, the author of this entry began research among the indigenous peoples of the region. Under her guidance, Edson Martins Jr. gathered data among the Galibi-Marworno, producing scientific reports and a residence map of the village of Kumarumã. Antonella Tassinari has written a doctoral thesis on the Karipuna, in which she presents historical and ethnographic data on the Galibi-Marworno. The biologists Luís Fábio Silveira and Renato Gaban, together with Lux Vidal, wrote an interdisciplinary report on the avifauna in the region of the Uaçá. The author of this entry has produced various articles on cosmology, art, myth and history, in the form of unpublished scientific reports. Field research among the Indigenous Peoples of the Oiapoque, undertaken by Lux Vidal and her advisees, was supported by the FAPESP (Foundation for Research Support of the State of São Paulo) through the Thematic Projects titled: "Anthropology, History and Education" - Mari/USP (Process no. 94/3492-9) and "Indigenous Societies and their Boundaries in the Southeastern Region of the Guianas" - NHII/USP (Process no. 95/0602-0).

Members of CIMI have published several works of a linguistic nature, on the kheuol dialect, focusing on bilingual education. This is the case of the article by Spires (1989) which deals with the experiences of bilingual education among the Karipuna and Galibi and the Kheuol-Portuguese/Portuguese-Kheuol dictionary, organized by Picanço.