| 13 | EDUCATION. | 43 | - |
| | 13.12 | Teacher Education and Professional Development, Specific Levels and Methods. | 43 | - |
| | | 13.1210 | Early Childhood Education and Teaching. | 43 | - |
| 52 | BUSINESS, MANAGEMENT, MARKETING, AND RELATED SUPPORT SERVICES. | 13 | - |
| | 52.02 | Business Administration, Management and Operations. | 13 | - |
| | | 52.0213 | Organizational Leadership. | 13 | - |