Aguilera, Domingo. Diccionario koygua : sinonimos informales en guarani / Domingo Adolfo Aguilera. - Asuncion : Centro de Estudios Paraguayos Antonio Guasch, 2000. - 180 p. ; 19 cm. Spanish and Guarani LCCN: 00385628 Subjects--Topical Terms: Guarani language--Synonyms and antonyms. LC Class. No.: PM6082.Z5 / A48 2000 Dewey Class. No.: 498.38231