De la Peña, F. T. The science and technology system in the Philippines in the year 2000. Philippine Engineering Journal.
Chicago-viite (17. p.)De la Peña, Fortunato T. "The Science and Technology System in the Philippines in the Year 2000." Philippine Engineering Journal .
MLA-viite (9. p.)De la Peña, Fortunato T. "The Science and Technology System in the Philippines in the Year 2000." Philippine Engineering Journal, .
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