Estabillo, A. R. V., & Salinas, T. A. (1985). A study on the relationship of physical environment to economic organization in Puguis, La Trinidad, Benguet.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEstabillo, Apple Rose V., और Tala Aurora Salinas. A Study on the Relationship of Physical Environment to Economic Organization in Puguis, La Trinidad, Benguet. 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEstabillo, Apple Rose V., और Tala Aurora Salinas. A Study on the Relationship of Physical Environment to Economic Organization in Puguis, La Trinidad, Benguet. 1985.
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