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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Dept. of Science and Technology. Metals Industry Research and Development Center. The Philippine Heat Treatment Industry Industry: A 1990 Study. Taguig, Metro Manila: MIRDC, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Dept. of Science and Technology. Metals Industry Research and Development Center. The Philippine Heat Treatment Industry Industry: A 1990 Study. MIRDC, 1994.
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