M. Kathryn Brown, Jaime J. Awe, Christopher J. Hartman (2004) The Terminal Early Formative Kanocha Phase (1100-900 B.C.) at Blackman Eddy (in:) Jaime Awe, John Morris, Sherilyne Jones (eds.) Research Reports in Belizean Archaeology Volume 1. Archaeological Investigations in the Eastern Maya Lowlands: Papers of the 2003 Belize Archaeology Symposium. Institute of Archaeology, National Institute of Culture and History, Belize, s. 13-26. Hermes, Bernard, Jarosław Źrałka, Zoila Calderón (2006) La periferia de Nakum, Petén: Datos recientes sobre la complejidad urbana de un asentamiento. (w:) J.P. Laporte, B. Arroyo, H. Mejía (eds.) XIX Simposio de Investigaciones Arqueológicas en Guatemala, 2005. Museo Nacional de Arqueología y Etnología, Guatemala, s. 990-1009 Puleston, Dennis E. (1965) The chultuns of Tikal, „Expedition Magazine” 7 (3), Penn Museum, s. 24-39 Puleston, Dennis E. (1971) An experimental approach to the function of classic Maya chultuns, „American Antiquity” 36, s. 322-335 Stavrakis-Puleston, Olga (2015) The assembled work of Dennis E. Puleston (Field research 1961­1972). Paris Monographs in American Archaeology 43, BAR British Archaeological Reports International Series 2757, BAR Publishing Trześniowski, Przemysław A.