Abalos, M. L., Aspera, R., Entico, M. C., & Rodriguez, S. (2002). A Statistical analysis on Ultra Dong Shin Corporation. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Abalos, Maria Lourdes, Romeo Aspera, Ma. Cecilia Entico, agus Sharmaine Rodriguez. A Statistical Analysis on Ultra Dong Shin Corporation. Diliman, Quezon City: College of Engineering, 2002.
Lua MLA (9ú heag.)Abalos, Maria Lourdes, et al. A Statistical Analysis on Ultra Dong Shin Corporation. College of Engineering, 2002.
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