PEÑA, J. G.(2009). A Historical Reconstruction of the Peba-Yaguan Linguistic Family.
PEÑA, J. G.(2009). Reseña de Hannß, Katja. 2008. Uchumataqu: The Lost Language of the Urus of Bolivia. A Grammatical Description of the Language as Documented between 1894 and 1952. Studies in Language. Volumen: 4. (pp. 1012 - 1018). Recuperado de: https://www.jbe-platform.com/content/journals/10.1075/sl.33.4.10pen
PEÑA, J. G.(2008). Complex Constructions in Chipaya: Main Strategies for Complementation, Relativization and Adverbial subordination.. En Conference on Indigenous Languages of Latin America (CILLA)-III. University of Texas, Austin.
PEÑA, J. G.(2007). Perdere il cielo: Breve revisione dei concetti di contatto, colpa e contagio nei popoli indigeni del Perú. Trickster - Rivista del Master in Studi Interculturali.
Payne, D. (Editor) y PEÑA, J. G. (Editor). (2007). Selected Proceedings of the 37th Annual Conference on African Linguistics. SOMERVILLE, MA. Cascadilla Proceedings Project.
PEÑA, J. G.(2006). La primera lexicografía andina: paralelismos, préstamos y reajustes semánticos en quechua y aimara (1532-1640). En América y el diccionario. (pp. 113 - 124). UNIVERSIDADE DA CORUÑA.
