De Asis, R. G. (2001). A survey of secondary schools: General information school profile/profile of science and mathematics teachers, and information technology capabilities. The Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Asis, Rodelio G. A Survey of Secondary Schools: General Information School Profile/profile of Science and Mathematics Teachers, and Information Technology Capabilities. Bicutan Taguig City: The Institute, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe Asis, Rodelio G. A Survey of Secondary Schools: General Information School Profile/profile of Science and Mathematics Teachers, and Information Technology Capabilities. The Institute, 2001.
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