Philippines: Comelec told to study options on PCOS machines, Business Mirror (2011).
This article discusses the options of purchasing or leasing the Precinct Optical Scan (PCOS) machines for the 2013 and 2016 elections.
La dirección del enlace es: http://businessmirror.com.ph/home/nation/20591-comelec-told-to-study-options-on-pcos-machines