Aquino, R. J., Deomano, J. J. V., & Santos, J. A. K. (1999). A methods engineering study on Ana Shoe Manufacturing Company. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Aquino, Ryan Jose, Johanna Jeraldine V. Deomano, agus Jose Angel K. Santos. A Methods Engineering Study on Ana Shoe Manufacturing Company. Diliman, Quezon City: College of Engineering, 1999.
Lua MLA (9ú heag.)Aquino, Ryan Jose, et al. A Methods Engineering Study on Ana Shoe Manufacturing Company. College of Engineering, 1999.
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