Heriales, M. C. A. (2009). Educational field study: Observation and participation. Great Books Pub.
Lua i Stíl Chicago (17ú heag.)Heriales, Ma. Christine Alaras. Educational Field Study: Observation and Participation. Quezon City: Great Books Pub, 2009.
Lua MLA (9ú heag.)Heriales, Ma. Christine Alaras. Educational Field Study: Observation and Participation. Great Books Pub, 2009.
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