※一部利用できない機能があります
- National Center for Education Statistics (4)
- Stern, Joyce D. (3)
- Chandler, Marjorie O. (2)
- Alsalam, Nabeel (1)
- Ogle, Laurence T. (1)
- Pfile, Ross (1)
- Plisko, Valena White (1)
- Rogers, Gayle Thompson (1)
- Smith, Thomas M. (1)
- Snyder, Thomas D. (1)