Guaraní Possessive Constructions - Discusses the different ways in which the concept of Possession is encoded in Guaraní. Maura Velazquez, 1989. crl.ucsd.edu/newsletter/3-6/Article1.html
Guaraní y Jopara en Paraguay - An article about language mixing in Paraguay. PDF format. www.uni-mainz.de/~lustig/guarani/art/jopara.pdf