YAKIMA - Crystian Ramirez, Pedro Garibaldo, Victor Aguilar and Yonic Quiroz, all of the Sunnyside area, were among the students to graduate from Perry Technical Institute during ceremonies held June 20 at the Yakima technical school. Ramirez and Garibaldo each earned their certificate in electrical technology. Aguilar became certified in heating, ventilation, air conditioning and refrigeration technology. Quiroz earned a certificate in instrumentation and industrial automation technology. Established in 1939, Perry Technical Institute is a private, non-profit educational institution in Yakima which offers 11 specialized technical training programs.