Mangubat, J. G. (1970). The administrative and supervisory practices in four American schools in the Philippines [thesis-M.Ed.].
Lua i Stíl Chicago (17ú heag.)Mangubat, Josephine G. The Administrative and Supervisory Practices in Four American Schools in the Philippines [thesis-M.Ed.]. 1970.
Lua MLA (9ú heag.)Mangubat, Josephine G. The Administrative and Supervisory Practices in Four American Schools in the Philippines [thesis-M.Ed.]. 1970.
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