Coba jelasin Pustaka dari Taman Nasional Big Bend dalam bahasa bali dong

Gómez, Arthur R. (1990) A Most Singular Country: A History of Occupation in the Big Bend. Charles Redd Center for Western Studies; Brigham Young University.

Jameson, John R. (1996) The Story of Big Bend National Park. University of Texas Press.

Maxwell, Ross A. (1968) The Big Bend of the Rio Grande: A Guide to the Rocks, Landscape, Geologic History, and Settlers of the Area of Big Bend National Park. Bureau of Economic Geology; University of Texas.