Ballecer, J. E. V., & Mananghaya, D. R. (2005). Evaluation of the impact of the NICE Universe Quality Monitoring System in a Call Center. University of the Philippines Diliman.
Chicago Style (17. basım) AtıfBallecer, Juan Emmanuel Villanueva, ve Dr. Rufino Mananghaya. Evaluation of the Impact of the NICE Universe Quality Monitoring System in a Call Center. Quezon City: University of the Philippines Diliman, 2005.
MLA (9th ed.) AtıfBallecer, Juan Emmanuel Villanueva, ve Dr. Rufino Mananghaya. Evaluation of the Impact of the NICE Universe Quality Monitoring System in a Call Center. University of the Philippines Diliman, 2005.
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