Chumacero, Romulo (2007): Altitude or hot air? Unpublished.
Chumacero, Romulo; Gómez Caorsi, Daniel and Paredes, Ricardo (2008): I would walk 500 miles (if it paid). Unpublished.
Chumacero, Romulo and Paredes, Ricardo (2008): Should for-profit schools be banned? Unpublished.
