University of the Philippines Diliman. Information Technology Training Center, Salvio, S. J., Carreon, M., & Paje, P. (2012). Service science, management and engineering. DZUP.
Chicago-viite (17. p.)University of the Philippines Diliman. Information Technology Training Center, Sarah Joy Salvio, Mario Carreon, ja Paulo Paje. Service Science, Management and Engineering. Quezon City: DZUP, 2012.
MLA-viite (9. p.)University of the Philippines Diliman. Information Technology Training Center, et al. Service Science, Management and Engineering. DZUP, 2012.
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