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- Administration 3
- High school principals 3
- Education, Secondary 2
- Enseignement secondaire 2
- High schools 2
- Middle school principals 2
- Écoles secondaires 2
- Administración escolar 1
- Administration scolaire 1
- Directeurs d'école moyenne 1
- Directeurs d'école secondaire 1
- Directores de escuela 1
- Dissertations, Academic 1
- Educational change 1
- Enseignement 1
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- Middle school administrators 1
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1Publicado 1917“…National Association of Secondary School Principals…”
Click para texto completo. Acceso restringido UPSA
Seriada digital -
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4Publicado 1993“…National Association of Secondary School Principals…”
Tesis -
5Publicado 2015“…National Association of Secondary School Principals…”
Revista digital -
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7por National Association of Secondary School Principals (U.S.)“…[National Association of Secondary School Principals]…”
Publicado 1972
Revista digital
