Villegas, E. D. (1988). Values of school administrators as perceived by teachers in Bangar & Sudipen Districts School year 1987-1988.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVillegas, Efigenia D. Values of School Administrators as Perceived by Teachers in Bangar & Sudipen Districts School Year 1987-1988. 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVillegas, Efigenia D. Values of School Administrators as Perceived by Teachers in Bangar & Sudipen Districts School Year 1987-1988. 1988.
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