| Type |  Book |
| ชื่อเรื่อง | Principals improving instruction : supervision, evaluation, and professional development / Michael F. DiPaola, Wayne K. Hoy |
| ผู้แต่ง | Dipaola, Michael f. 1947- |
| ISBN | 0205491022 (pbk.) |
| | 9780205491025 |
| | 9780205491025 (pbk.) |
| | 0205491022 (alk. paper) |
| | 9780205491025 (alk. paper) |
| พิมพลักษณ์ | Boston : Pearson Prentice Hall, 2008 |
| | Boston : Pearson/Allyn and Bacon, c2008 |
| รูปเล่ม | viii, 312 p. : ill |
| หัวเรื่อง | School principals --United States [] |
| | School supervision --United States [] |
| | School supervision --United Steates [] |